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Matcha is having a moment. What are the health benefits of this green tea drink?

<div class="theconversation-article-body"> <a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> Matcha has experienced a surge in popularity in recent months, leading to reports of <a href="https://www.smh.com.au/goodfood/sydney-eating-out/global-matcha-shortage-hits-australia-as-skyrocketing-popularity-rivals-coffee-20241101-p5kn6v.html">global shortages</a> and price increases. If you haven’t been caught up in the craze, matcha is a powdered version of green tea. On a cafe menu you might see a hot or iced matcha latte, or even a matcha-flavoured cake or pastry. A quick google brings up <a href="https://www.foodandwine.com/tea/matcha-tea/matcha-recipes">countless recipes</a> incorporating matcha, both sweet and savoury. Retailers and cafe owners <a href="https://www.smh.com.au/goodfood/sydney-eating-out/global-matcha-shortage-hits-australia-as-skyrocketing-popularity-rivals-coffee-20241101-p5kn6v.html">have suggested</a> the main reasons for matcha’s popularity include its “instagrammable” looks and its purported health benefits. But what are the health benefits of matcha? Here’s what the evidence says. <h2>First, what is matcha?</h2> <a href="https://www.mdpi.com/1420-3049/26/1/85">Matcha</a> is a finely ground powder of green tea leaves, which come from the plant Camellia sinensis. This is the same plant used to make green and black tea. However, the <a href="https://naokimatcha.com/blogs/articles/how-matcha-is-made-in-japan">production process</a> differentiates matcha from green and black tea. For matcha, the tea plant is grown in shade. Once the leaves are harvested, they’re steamed and dried and the stems are removed. Then the leaves are carefully ground at controlled temperatures to form the powder. The <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6571865/">production process</a> for green tea is simpler. The leaves are picked from the unshaded plants, heated and then dried. We then steep the dried leaves in hot water to get tea (whereas with matcha the whole leaf is consumed). With black tea, after the leaves are picked they’re exposed to air, which leads to oxidation. This makes the leaves black and gives the tea a different flavour. <h2>A source of phytonutrients</h2> Phytonutrients are <a href="https://theconversation.com/phytonutrients-can-boost-your-health-here-are-4-and-where-to-find-them-including-in-your-next-cup-of-coffee-132100">chemical compounds found in plants</a> which have a range of benefits for human health. Matcha contains several. Chlorophyll gives plants such as Camellia sinensis their green colour. There’s some evidence chlorophyll may have <a href="https://www.mdpi.com/2223-7747/12/7/1533">health benefits</a> – including anti-inflammatory, anti-cancer and anti-obesity effects – due to its antioxidant properties. Antioxidants neutralise free radicals, which are unstable molecules that harm our cells. Theanine has been shown to <a href="https://www.mdpi.com/2504-3900/91/1/32">improve sleep</a> and <a href="https://link.springer.com/article/10.1007/s11130-019-00771-5?crsi=662497574&cicada_org_src=healthwebmagazine.com&cicada_org_mdm=direct">reduce stress and anxiety</a>. The only <a href="https://www.sciencedirect.com/topics/medicine-and-dentistry/theanine">other known</a> dietary source of theanine is mushrooms. Caffeine is a phytonutrient we know well. Aside from increasing alertness, caffeine has also demonstrated <a href="https://www.tandfonline.com/doi/full/10.1080/10408398.2022.2074362?casa_token=ADALIs6M3iAAAAAA%3AXpY35se0zLddAEIbZAaeCcDaNWm94s2WJaDHfXDRvVZgYq_xTxsCFuvtrtNXMXAL9uNIvLlYzO30aA#abstract">antioxidant effects</a> and some protection against a range of chronic and neurodegenerative diseases. However, too much caffeine can have negative side effects. Interestingly, shading the plants while growing appears to <a href="https://scijournals.onlinelibrary.wiley.com/doi/pdfdirect/10.1002/jsfa.9112?casa_token=KxVD9i9p4BsAAAAA:OwGTauXFHAndyJkam8WuXrmGQ2k1kaSRu5pOqJOrhSyRSeWkDwdrI23qaD5WVH1HGqZLFdsjP9ZTvolw">change the nutritional composition</a> of the leaf and may lead to higher levels of these phytonutrients in matcha compared to green tea. Another compound worth mentioning is called catechins, of which there are several different types. Matcha powder similarly has <a href="https://theconversation.com/matcha-tea-what-the-current-evidence-says-about-its-health-benefits-202782">more catechins</a> than green tea. They are strong antioxidants, which <a href="https://link.springer.com/article/10.1186/s41702-020-0057-8">have been shown</a> to have protective effects against bacteria, viruses, allergies, inflammation and cancer. Catechins <a href="https://www.sciencedirect.com/topics/medicine-and-dentistry/catechin#:%7E:text=Catechin%20is%20naturally%20present%20in,containing%20many%20catechins%20%5B130%2C131%5D.">are also found</a> in apples, blueberries and strawberries. <h2>What are the actual health benefits?</h2> So we know matcha contains a variety of phytonutrients, but does this translate to noticeable health benefits? A review published in 2023 identified only <a href="https://www.sciencedirect.com/science/article/pii/S2665927122002180">five experimental studies</a> that have given matcha to people. These studies gave participants about 2–4g of matcha per day (equivalent to 1–2 teaspoons of matcha powder), compared to a placebo, as either a capsule, in tea or in foods. Matcha decreased stress and anxiety, and improved memory and cognitive function. There was no effect on mood. A <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0309287">more recent study</a> showed 2g of matcha in older people aged 60 to 85 improved sleep quality. However, in <a href="https://www.mdpi.com/2072-6643/16/17/2907">younger people</a> aged 27 to 64 in another study, matcha had little effect on sleep. A <a href="https://link.springer.com/article/10.1007/s11130-022-00998-9">study in people with obesity</a> found no difference in the weight loss observed between the matcha group and the control group. This study did not randomise participants, and people knew which group they had been placed in. It could be hypothesised that given you consume all of the leaf, and given levels of some phytonutrients may be higher due to the growing conditions, matcha may have more nutritional benefits than green tea. But to my knowledge there has been no direct comparison of health outcomes from green tea compared to matcha. <h2>There’s lots of evidence for green tea</h2> While to date a limited number of studies have looked at matcha, and none compared matcha and green tea, there’s quite a bit of research on the health benefits of drinking green tea. A <a href="https://www.sciencedirect.com/science/article/pii/S0944711317300867?casa_token=dpbAEQQ7Is4AAAAA:U6aggqZM_G0KJ8hkhx0TGSvQywr4utlgKzwUnUj9x5t9eWd-FKENjbTvUv6s4TBTaPYrob-qQkk">systematic review of 21 studies</a> on green tea has shown similar benefits to matcha for improvements in memory, plus evidence for mood improvement. There’s also evidence green tea provides other health benefits. Systematic reviews have shown green tea leads to <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/ptr.6697?casa_token=1eAbmeGillYAAAAA%3ABNGBB6EuRFXIDWHgsa7E798wfC0MQK2r3yOmAlFzR2sxyD9Xt837VoCel0l6Tsh3RRO19t-YUm1GqO7Y">weight loss in people with obesity</a>, lower levels of <a href="https://link.springer.com/article/10.1186/s12937-020-00557-5">certain types of cholesterol</a>, and <a href="https://journals.lww.com/md-journal/fulltext/2020/02070/Effect_of_green_tea_supplementation_on_blood.36.aspx/1000">reduced blood pressure</a>. Green tea may also <a href="https://www.nature.com/articles/s41430-020-00710-7">lower the risk of certain types of cancer</a>. So, if you can’t get your hands on matcha at the moment, drinking green tea may be a good way to get your caffeine hit. Although the evidence on green tea provides us with some hints about the health benefits of matcha, we can’t be certain they would be the same. Nonetheless, if your local coffee shop has a good supply of matcha, there’s nothing to suggest you shouldn’t keep enjoying matcha drinks. However, it may be best to leave the matcha croissant or cronut for special occasions. When matcha is added to foods with high levels of added sugar, salt and saturated fat, any health benefits that could be attributed to the matcha may be negated.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/242775/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, Program Director of Nutrition and Food Sciences, Accredited Practising Dietitian, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/matcha-is-having-a-moment-what-are-the-health-benefits-of-this-green-tea-drink-242775">original article</a>. </div>

Food & Wine

How do we save ageing Australians from the heat? Greening our cities is a good start

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/claudia-baldwin-248780">Claudia Baldwin</a>, <a href="https://theconversation.com/institutions/university-of-the-sunshine-coast-1068">University of the Sunshine Coast</a>; <a href="https://theconversation.com/profiles/jason-byrne-6066">Jason Byrne</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>, and <a href="https://theconversation.com/profiles/tony-matthews-234160">Tony Matthews</a>, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a> Heatwaves have killed more Australians than <a href="https://ama.com.au/ausmed/heatwave-health-warning">road accidents</a>, fires, floods and <a href="https://www.sciencedirect.com/science/article/pii/S1462901114000999">all other natural disasters combined</a>. Although <a href="https://theconversation.com/forget-heatwaves-our-cold-houses-are-much-more-likely-to-kill-us-83030">recent research</a> shows extreme cold is a worry in some parts of Australia, <a href="https://theconversation.com/2018-19-was-australias-hottest-summer-on-record-with-a-warm-autumn-likely-too-112616">our hottest summer on record</a> points to more heat-related deaths to come. The <a href="https://theconversation.com/the-stubborn-high-pressure-system-behind-australias-record-heatwaves-110442">record heatwaves</a> have highlighted the damaging effects of heat stress. Understandably, it’s becoming a major <a href="https://ama.com.au/ausmed/heatwaves-nation%E2%80%99s-deadliest-natural-disaster-0">public health challenge</a>. The risk of extreme heat events and the adverse impacts on older people has been extensively <a href="https://jech.bmj.com/content/64/9/753.short">discussed in research</a>. Remarkably, very little attention has been paid to the role of urban greenery in reducing heat stress for seniors. Older people are particularly at risk of heat stress. Pre-existing medical conditions and limited mobility increase their vulnerability. <a href="http://www.cmaj.ca/content/182/10/1053.short">Deaths of older people increase</a> during extreme heat events. The physical features of urban areas shape the capacity of older adults to engage in many activities when it’s hot. These include vegetation volume and coverage, <a href="https://theconversation.com/building-cool-cities-for-a-hot-future-57489">thermal design</a>, and the extent of shading in public areas and walkways. Increasing urban greenery may offer a way to improve older people’s comfort and social experience. <h2>Ageing adds urgency to greening</h2> It is expected <a href="http://www.un.org/en/sections/issues-depth/ageing/">20% of the global population</a> will be older than 60 by 2050. The figure for Australia <a href="http://www.abs.gov.au/ausstats/abs@.nsf/mediareleasesbyTopic/2CA2134677EF9D03CA257C2E0017283B?OpenDocument">is even higher</a>, at 23%. This means that by 2050 around one in four Australians will be more vulnerable to extreme heat. <figure class="align-right zoomable"></figure> Climate change may make the problem worse by <a href="https://www.sciencedirect.com/science/article/pii/S0749379708006867">fuelling even more extreme heat</a> events. Planning our urban centres to meet the needs of a <a href="https://www.aihw.gov.au/reports/older-people/older-australia-at-a-glance/contents/demographics-of-older-australians">rapidly ageing population</a> is a matter of urgency. Urban greening to reduce their vulnerability to heat stress should be central to this agenda. It can also improve people’s quality of life, reduce <a href="https://www.sciencedirect.com/science/article/abs/pii/S1353829208001172">social isolation and loneliness</a>, and ease the burden on health systems. An important task is matching the design of communities with the needs of an ageing population. Where older adults live and the quality of their local areas strongly influence their lived experiences. Yet <a href="https://journals.sagepub.com/doi/abs/10.1177/0885412217704649">recent research</a> found the experiences of seniors were often not accounted for in research on neighbourhood design. <h2>What about aged care?</h2> People face choices about where they live as they age. The common choices are to “<a href="https://theconversation.com/for-australians-to-have-the-choice-of-growing-old-at-home-here-is-what-needs-to-change-91488">age in place</a>” or to move into aged care. Ageing in place includes living in one’s own home or <a href="https://theconversation.com/co-housing-works-well-for-older-people-once-they-get-past-the-image-problem-79907">co-habiting with relatives or friends</a>. Around 90% of Australian seniors <a href="https://www.pc.gov.au/research/completed/housing-decisions-older-australians/housing-decisions-older-australians.pdf">choose this option</a>, with the remainder opting for aged-care facilities. If one in ten Australian seniors live in aged-care facilities, it is clear these should be designed to minimise heat stress. This isn’t just good for residents; it may also benefit operators by lowering health-care and electricity costs. While these facilities are purpose-built for older people, many in Australia were built well over a decade ago, when heat stress was not such a large concern. Many more facilities are being built now and will be into the future. Yet it is uncertain whether they are being actively designed to reduce the impacts of heat. <h2>What has our research found?</h2> We recently conducted a focus group to investigate this issue. Participants were senior managers from four large corporate providers of aged care in Australia. We investigated if and how providers try to minimise heat stress through design. We also sought to understand the rationales used to support these design approaches. Several participants reported on refurbishments that they expect will have cooling effects. Cited design approaches included green roofs and walls, as well as sensory gardens. Other expected benefits included reducing anxiety and improving the mental health of residents. The fact that single design interventions could produce multiple benefits improved the potential for corporate buy-in. Participants expected that increasing green space and green cover would give their facilities a competitive advantage by attracting more clients and providing a better working environment for staff. Participants also reported on challenges of including greening in their projects. For example, the benefits of trees were weighed against concerns about roots disrupting footpaths and becoming trip hazards. Species selection was another concern, with fears that inappropriate plants could die and undermine support for greening programs. Our research suggests that more can be done to make cities hospitable for older people, especially during extreme heat. Urban greening is a start. Encouraging aged-care providers to adopt green infrastructure will have benefits. But we should also consider reforms to planning systems and urban design to better protect older people who choose to age in place.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/112613/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/claudia-baldwin-248780">Claudia Baldwin</a>, Associate Professor, Urban Design and Town Planning, Sustainability Research Centre, <a href="https://theconversation.com/institutions/university-of-the-sunshine-coast-1068">University of the Sunshine Coast</a>; <a href="https://theconversation.com/profiles/jason-byrne-6066">Jason Byrne</a>, Professor of Human Geography and Planning, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>, and <a href="https://theconversation.com/profiles/tony-matthews-234160">Tony Matthews</a>, Senior Lecturer in Urban and Environmental Planning, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-do-we-save-ageing-australians-from-the-heat-greening-our-cities-is-a-good-start-112613">original article</a>. </div>

Domestic Travel

"Green cordial" water in Sydney harbour baffles residents

A bay in Sydney Harbour has turned neon green, with authorities currently investigating the cause. Locals were baffled when they saw the bay along Hipwood Street in Kirribilli, near Milsons Park, turn bright green at about 3pm on Wednesday, with many calling the incident "unusual". Firefighters said they were "alerted to a large spill of fluorescent green material flowing into the harbour". One local described the water as "green cordial" and said it resembled "radioactive stuff you see in superhero movies". NSW Fire and Rescue then conducted several tests and said the water is not toxic and is currently not harming the environment. The Fire and Rescue team are now trying to flush out the green substance, and said that the incoming rain should help turn the water colour back to normal. Another resident told 9News that they had seen green water in a stormwater drain at Anderson Park, along Clark Road, on Tuesday, before the green colour spread to the bay on Wednesday. Later in the afternoon, a North Sydney Council spokeswoman confirmed that were no major pollutants in the green water: “At this stage our engineers believe the substance is likely to be fluorescein, which is used as a dye for plumbing works. Fluorescein is a non-toxic substance and breaks down with UV light. The green colour is a feature that makes it easy to trace.” Green water was also spotted in Neutral Bay on Wednesday according to another local. Image: Nine

Travel Trouble

“Hypocrite”: Hughesy's on-air clash with Greens leader

Dave “Hughesy” Hughes had a fiery debate with Australian Greens Leader Adam Bandt about veganism on-air on The Fox’s Fifi, Fev & Nick. Before Bandt appeared on the show, a clip played of Hughesy, who is a vegan, calling for the leader to "quit the party" after learning the Greens leader wasn't a vegan. He questioned how Bandt could advocate for climate action without adopting a plant-based lifestyle, and the Greens leader was brought onto the show to explain his stance. “So you are not a vegan?” Hughesy asked the politician. “I’m not….” replied Bandt. “I applaud those who are, I applaud those who have made the shift. I’ve been thinking about it …” Hughesy then loudly interjected “ … URGH, THINKING ABOUT IT?” The Greens leader replied: “I don’t have a good drop-dead reason, but I’ve been thinking about it, and I can probably give you three justifications for it. "Firstly, we’ve made big changes at home and basically only eat meat for special occasions, the rest of the time we’re vegan or vegetarian at home.” “…. THERE’S ONE WAY, ADAM, THERE’S ONE WAY …” the presenter yelled in response. Hughesy's co-star Fev then tried to make light of the situation and asked him: “What are you doing Dave?" "Adam is doing the version of Leonardo DiCaprio and his private jet flying around the world while banging on about climate change, but you flew to Brisbane on the weekend,” he continued suggesting that Hughesy too was being a hypocrite by getting on a flight recently. “But I don’t bang on about it,” exclaimed Hughesy. “Adam is the leader of the Greens … it’s hypocritical! C’mon, you can do it, Adam, you can become a vegan! Be the change you want to see in the world, buddy!” Hughesy adopted the vegan lifestyle for his own health, but he has previously revealed that it comes with its challenges and his family were also not that enthusiastic about the change. Image: news.com.au/ Fifi, Fev & Nick

Food & Wine

Most sustainable travel destinations

If you’re wanting to be more environmentally friendly while travelling, there are some must visit destinations to add to your travel bucket list. To help you find the greenest countries to make you feel good about your next holiday, a new study by <a href="https://www.arka.com/">AKRA</a> has listed more than 50 cities to create a ranking of the world's top sustainable destinations in 2024. Each city was judged based on three main criteria: the percentage of green spaces, bike friendliness, and tram network coverage. Additional criteria such as the country's Sustainability Score, Percentage of Renewable Energy Use, Electric Vehicle Usage, and CO2 Emissions per Capita, was also taken into account. While the list was largely dominated by European destinations, one Australian country also cracked the top ten list. Check out the list below. 10. Copenhagen, Denmark 9. Oslo, Norway 8. Helsinki, Finland 7. Prague, Czech Republic 6. Seoul, South Korea 5. Bern, Switzerland 4. Utrecht, The Netherlands 3. Melbourne, Australia 2. Warsaw, Poland 1. Berlin, Germany Image credits: Shutterstock

International Travel

Eating leafy greens could be better for oral health than using mouthwash

<a href="https://theconversation.com/profiles/mia-cousins-burleigh-1201153">Mia Cousins Burleigh</a>, <a href="https://theconversation.com/institutions/university-of-the-west-of-scotland-1385">University of the West of Scotland</a> and <a href="https://theconversation.com/profiles/siobhan-paula-moran-1506183">Siobhan Paula Moran</a>, <a href="https://theconversation.com/institutions/university-of-the-west-of-scotland-1385">University of the West of Scotland</a> Over half the adult population in the <a href="https://pubmed.ncbi.nlm.nih.gov/26052472">UK and US</a> have gum disease. Typical treatments include <a href="https://www.nature.com/articles/s41598-020-61912-4">mouthwash</a> and in severe cases, <a href="https://www.magonlinelibrary.com/doi/abs/10.12968/vetn.2017.8.10.542">antibiotics</a>. These treatments have side effects, such as dry mouth, the development of <a href="https://pubmed.ncbi.nlm.nih.gov/30967854/">antimicrobial resistance</a> and increased <a href="https://www.nature.com/articles/s41598-020-61912-4">blood pressure</a>. But research has indicated that a molecule called <a href="https://www.nature.com/articles/s41598-020-69931-x">nitrate</a>, which is found in leafy green vegetables, has fewer side effects and offers greater benefits for oral health. And it could be used as a natural alternative for treating oral disease. Inadequate brushing and flossing leads to the build up of <a href="https://www.nature.com/articles/s41598-020-69931-x">dental plaque</a>, a sticky layer of bacteria, on the surface of teeth and gums. Plaque causes tooth decay and gum disease. Sugary and acidic foods, dry mouth, and smoking can also contribute to bad breath, tooth decay, and gum infections. The two main types of gum disease are gingivitis and periodontitis. <a href="https://www.spandidos-publications.com/10.3892/etm.2019.8381">Gingivitis</a> causes redness, swelling and bleeding of the gums. <a href="https://www.spandidos-publications.com/10.3892/etm.2019.8381">Periodontitis</a> is a more advanced form of gum disease, causing damage to the soft tissues and bones supporting the teeth. Periodontal disease can therefore, lead to tooth loss and, when bacteria from the mouth enter the bloodstream, can also contribute to the development of <a href="https://www.nature.com/articles/bdjteam2015163">systemic disorders</a> such as cardiovascular disease, dementia, diabetes and rheumatoid arthritis. <h2>Leafy greens may be the secret</h2> Leafy greens and root vegetables are bursting with <a href="https://www.sciencedirect.com/science/article/pii/S2666149723000312">vitamins, minerals, and antioxidants</a> – and it’s no secret that a diet consisting of these vegetables is crucial for maintaining a healthy weight, boosting the immune system, and preventing <a href="https://journals.sagepub.com/doi/10.1177/2048004016661435">heart disease, cancer and diabetes.</a> The multiple health benefits of leafy greens are partly because spinach, lettuce and beetroots are brimming with <a href="https://www.nature.com/articles/s41598-020-69931-x">nitrate</a>, which can be reduced to nitric oxide by nitrate-reducing bacteria inside the mouth. <figure><iframe src="https://www.youtube.com/embed/7zrRlMGeBes?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption>Popeye knew a thing or two about the health benefits of eating leafy greens. Boomerang Official, 2017.</figcaption></figure> Nitric oxide is known to <a href="https://www.sciencedirect.com/science/article/abs/pii/S0006295222004191">lower blood pressure</a> and improve <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0243755#:%7E:text=Nitrate%2Drich%20beetroot%20juice%20offsets,healthy%20male%20runners%20%7C%20PLOS%20ONE">exercise performance</a>. However, in the mouth, it helps to prevent the overgrowth of bad bacteria and reduces <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0243755#:%7E:text=Nitrate%2Drich%20beetroot%20juice%20offsets,healthy%20male%20runners%20%7C%20PLOS%20ONE">oral acidity</a>, both of which can cause gum disease and tooth decay. As part of our research on nitrate and oral health, <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0243755#:%7E:text=Nitrate%2Drich%20beetroot%20juice%20offsets,healthy%20male%20runners%20%7C%20PLOS%20ONE">we studied competitive athletes</a>. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9839431/">Athletes are prone to gum disease</a> due to high intake of carbohydrates – which can cause inflammation of the gum tissues – stress, and dry mouth from breathing hard during training. Our study showed that beetroot juice (containing approximately 12 <a href="https://www.nursingtimes.net/students/an-easy-guide-to-mmols-09-02-2012/">millimole</a> of nitrate) protected their teeth from acidic sports drinks and carbohydrate gels during exercise – suggesting that nitrate could be used as a prebiotic by athletes to reduce the risk of tooth decay. Nitrate offers a lot of promise as an oral health <a href="https://www.nature.com/articles/s41598-020-69931-x">prebiotic</a>. Good oral hygiene and a nitrate rich diet could be the key to a healthier body, a vibrant smile and disease-free gums. This is good news for those most at risk of oral health deterioration such as <a href="https://www.news-medical.net/health/Periodontitis-and-Pregnancy.aspx">pregnant women</a>, and <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8771712/">the elderly</a>. In the UK, antiseptic mouthwashes containing <a href="https://www.nature.com/articles/s41598-020-61912-4">chlorhexidine</a> are commonly used to treat dental plaque and gum disease. Unfortunately, these mouthwashes are a blunderbuss approach to oral health, as they indiscriminately remove both good and bad bacteria and increase oral acidity, which can cause disease. Worryingly, early research also indicates that chlorhexidine may contribute to <a href="https://pubmed.ncbi.nlm.nih.gov/30967854/">antimicrobial resistance</a>. Resistance occurs when bacteria and fungi survive the effects of one or more <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4768623/">antimicrobial drugs</a> due to repeated exposure to these treatments. Antimicrobial resistance is a <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(21)02724-0/fulltext">global health concern</a>, predicted to cause 10 million deaths yearly by the year 2050. In contrast, dietary nitrate is more targeted. Nitrate eliminates disease-associated bacteria, reduces oral acidity and creates a balanced <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2944498/">oral microbiome</a>. The oral microbiome refers to all the microorganisms in the mouth. Nitrate offers exciting potential as an <a href="https://www.nature.com/articles/s41598-020-69931-x">oral health prebiotic</a>, which can be used to prevent disease onset or limit disease progression. <h2>How many leafy greens for pearly whites?</h2> So how much should we consume daily? As a rule of thumb, a generous helping of spinach, kale or beetroot at mealtimes contains about 6-10 mmol of nitrate and offers immediate health benefits. Work we have done with our collaborators has shown that treating <a href="https://www.nature.com/articles/s41598-020-69931-x">plaque samples</a> from periodontal disease patients with 6.5 mmol of nitrate increased healthy bacteria levels and reduced acidity. For example, consuming <a href="https://aap.onlinelibrary.wiley.com/doi/full/10.1002/JPER.20-0778">lettuce juice</a> for two weeks reduced gum inflammation and increased healthy bacteria levels in patients with gum disease. Growing evidence suggests that nitrate is a cornerstone of oral health. Crunching on a portion of vegetables at mealtimes can help to prevent or treat oral disease and keeps the mouth fresh and healthy.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/221181/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/mia-cousins-burleigh-1201153">Mia Cousins Burleigh</a>, Lecturer, School of Health and Life Sciences, <a href="https://theconversation.com/institutions/university-of-the-west-of-scotland-1385">University of the West of Scotland</a> and <a href="https://theconversation.com/profiles/siobhan-paula-moran-1506183">Siobhan Paula Moran</a>, PhD candidate, School of Health and Life Sciences, <a href="https://theconversation.com/institutions/university-of-the-west-of-scotland-1385">University of the West of Scotland</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/eating-leafy-greens-could-be-better-for-oral-health-than-using-mouthwash-221181">original article</a>.

Body

Aussie grandma and former Greens candidate jailed in Japan claims she was scammed

Donna Nelson, a 57-year-old Perth grandmother, has found herself entangled in a nightmarish situation in a Japanese prison, accused of a crime she vehemently denies. Nelson, an Aboriginal health advocate and former Greens candidate, has been incarcerated for nearly a year without a trial date set, facing allegations of attempting to smuggle two kilograms of meth into Japan. However, her plight is not as straightforward as it may seem, and her family and legal team are tirelessly fighting to clear her name. The ordeal began on January 4, when Nelson was arrested at Narita Airport in Tokyo. Authorities claimed to have discovered drugs concealed within a false compartment in her luggage. According to the prosecution, a customs officer suspected her of acting suspiciously. But the narrative has taken a complex turn as Nelson's defence team unveiled a shocking revelation: she alleges she was deceived and manipulated by a Nigerian scammer who had groomed her for two years. Since her arrest, Nelson has been confined to Chibu prison, located an hour outside Tokyo. Her living conditions are appalling; she spends 23 hours a day isolated in her cell, showers are allowed only every three days, and communication with other inmates and visitors is strictly prohibited. This form of treatment is a reflection of Japan's infamous "hostage justice" strategy, aimed at coercing confessions from detainees. The only individuals granted access to Nelson are her lawyers, Australian embassy representatives, and a pastor. Legal representatives have identified a significant issue with translation throughout the case, and it could very well hinge on an inaccurate translation by the customs officer at the time of her arrest. Rie Nishida from Shinjuku International Law Firm, one of Nelson's lawyers, explained, "The main evidence from the prosecution is mainly a customs officer who said she acted suspiciously. There's a lot of mistranslation that's also the difficulty in this case." This mistranslation issue is not trivial; it extends to the messages exchanged between Nelson and the man she believed she had a romantic connection with, who ultimately turned out to be a scammer. Matthew Owens, another member of the legal team and a translator for the case, noted, "Some of them were completely wrongly translated, so we had to re-translate those messages and submit them back to the prosecutor." Nelson remains steadfast in her conviction that she is innocent of the accusations against her. Her lawyer, Owens, relayed her message, saying, "Donna wants to say that she is going to be able to prove her innocence, she's 100 per cent confident of that, and she wants everyone in Australia and the world to know she is innocent." If found guilty, Nelson could face a harrowing 20-year sentence in a Japanese prison, a terrifying prospect for both her and her family. Her five daughters and grandchildren are distraught, but they are not giving up the fight to prove her innocence. They believe they have evidence to substantiate the claim that she was scammed and unjustly accused. Image: Australian Greens

Legal

Why does my hair turn green from the swimming pool?

<a href="https://theconversation.com/profiles/magdalena-wajrak-1432339">Magdalena Wajrak</a>, <a href="https://theconversation.com/institutions/edith-cowan-university-720">Edith Cowan University</a> If you are a blonde like me and enjoy laps in a swimming pool, you may have noticed your hair acquires a green tint after frequent swims in chlorinated water. This happens to both bleached and natural blondes. In fact, the green tinge happens to everyone, but it’s less visible on dark hair and those whose hair isn’t damaged by chemical treatments such as bleaching. But what exactly causes this green discoloration, and what can we do about it? Most of us blame the chlorine in the pool water. However, although chlorine does play a part, it is not the main culprit. <h2>Which chemicals in the pool turn the hair green?</h2> The element to blame for the green staining of hair is copper. The main source of copper is copper sulfate (CuSO₄), a compound added to swimming pools to prevent the growth of algae. <a href="https://www.sciencedirect.com/science/article/pii/S1568988320301803?via%3Dihub">Contact with algae</a> can cause skin irritation and respiratory issues, and ingesting water with algae can lead to serious gastrointestinal problems. Only a small amount (around 0.5mg per litre or 0.5 parts per million) of copper sulfate is needed to prevent algal growth. However, copper can also enter swimming pools through the corrosion of water pipes, so concentrations may be higher in some pools. Copper sulfate crystals are greenish-blue in colour. So, when hair comes into contact with copper ions – a positively charged variant of a copper atom with extra electrons – those ions get absorbed by the hair and cause the greenish hue. Scientists were fascinated by the green “pool hair” phenomenon as far back as the 1970s, so we actually have research data on copper being the cause. One very <a href="https://jamanetwork.com/journals/jamadermatology/article-abstract/538197">interesting study in 1978</a> performed experiments by immersing hair samples into water containing different concentrations of copper ions, chlorine and various pH values (neutral and basic). Their results showed hair exposed to free copper ions does turn green. Furthermore, when hair is oxidised (meaning electrons are removed from the hair proteins) by chlorine, it actually damages the hair, enhancing the absorption of copper ions. Hair submerged in water with chlorine but without copper ions did not turn green. Meanwhile, hair exposed to water with only copper ions and no chlorine still formed a green colour. Hence, chlorine by itself does not play a role in causing the green hue we see in “pool hair”, but it does exacerbate it. <h2>So, how does copper get into the hair?</h2> <a href="https://doi.org/10.1007/978-1-4684-0943-7_24">Other research teams</a> have conducted <a href="https://doi.org/10.1071/ch9682437">more extensive studies</a>, using sophisticated instruments, such as scanning electron microscopy, to examine how exactly copper ions attach to the hair. Our hair is predominantly composed of protein called keratin. Keratin is classified as a “structural fibrous protein”, meaning it has an elongated, sheet-like structure. The keratin structure is composed of various <a href="https://chem.libretexts.org/Courses/University_of_Kentucky/UK%3A_CHE_103_-_Chemistry_for_Allied_Health_(Soult)/Chapters/Chapter_4%3A_Structure_and_Function/4.4%3A_Functional_Groups">chemical groups</a> (types of atom groupings with similar properties), such as carboxyl groups, amino groups and disulfide groups. Copper ions have the ability to form bonds with these groups, forming a copper-keratin complex. This complex remains in the hair, causing it to appear green. Interestingly, the most recent study <a href="https://doi.org/10.32657/10356/142466">conducted in 2020</a>, showed copper ions mainly bind to the disulfide groups. This study also found other metal ions such as zinc, lead, chromium and mercury also bind to hair in the same way. This is very useful in <a href="https://theconversation.com/forensic-breakthrough-study-suggests-humans-can-be-identified-by-the-proteins-in-their-hair-65051">forensic analysis</a>, for example, because forensic scientists can analyse hair samples to determine if a person has been exposed to a particular metal. Light-coloured hair already has the most visible green discoloration, but research has shown that damaged hair, caused by bleaching, straightening, or exposure to sun, is the <a href="https://pubmed.ncbi.nlm.nih.gov/19586601/">most susceptible</a> to the binding of copper ions. This is because in damaged hair the disulfide groups have “broken bonds” (the link that holds the elements within these groups together is broken), making it easier for the copper ions to bind to the hair. <h2>Can I prevent the green colour or get rid of it?</h2> To prevent your hair from turning green in a swimming pool, you have two basic options. The first is a physical barrier – just wear a swim cap. The second option is chemical – you can pre-treat your hair with an alkaline shampoo. <a href="https://www.sciencedirect.com/science/article/abs/pii/S0891584918310050">Studies have shown</a> under alkaline pH conditions, the copper ions won’t attach to the hair. To treat your hair before going to the pool, you can either use a shampoo with a pH higher than 7, or you can even try mixing some baking soda into your regular shampoo. But what can you do if your hair has already turned greenish? Well, you can try washing your hair with a shampoo designed to achieve this, typically marketed as a “chlorine removal” shampoo. These products contain a chemical called EDTA – it can bind to metal ions (such as copper) and thus will remove copper from the hair. You may have heard tomato sauce or ketchup is a good way to get the green out of your pool hair – potentially because the red pigments are supposed to “cancel out” the green ones. However, I’m not aware of any scientific evidence this would work. Correction: This article has been amended to clarify that alkaline shampoos have a pH higher than 7, not lower.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/211736/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/magdalena-wajrak-1432339">Magdalena Wajrak</a>, Senior lecturer, Chemistry, <a href="https://theconversation.com/institutions/edith-cowan-university-720">Edith Cowan University</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/why-does-my-hair-turn-green-from-the-swimming-pool-211736">original article</a>.

Beauty & Style

My Royal Melbourne Seniors Classic Adventure: A day on the greens (and in the bunkers!)

G'day to all past, present, and emerging golf enthusiasts! If you're a senior golfer like me, hunting for inspiration, adventure, and authentic golf yarns — this is for you. Picture this: a crisp August morning, and sixty-two senior golfers gathered on Royal Melbourne's West Course for the Vic Seniors Classic 2023. Here's the story of how it all went down... Before anything else, I mustered the guts to jump in. Ever heard of "imposter syndrome"? Trust me, I was its best mate. But the requirements were clear: age 55+ (I'm a proud 65-year-old), GA Handicap under 24.5 (18.5), and a $225 entry fee. Wait, $225? Given that Royal Melbourne's green fees dance around $1000, caddy fee included, it was a no-brainer. Fueled by the temptation of playing a top-notch course for a quarter of the fee, I submitted my application without hesitation. Before I knew it, my name adorned the list of players. As the day approached, I was geared up to tackle the Royal Melbourne challenge. The 8 am shotgun start meant groups teed off from various holes. I found myself at the 11th tee, flanked by two fierce competitors: Peter (Daily Handicap 1) and Damian (12). Yours truly? A modest 20. Standing over the ball, knees a tad wobbly, I swung that driver. The ball sailed gracefully, landing centre fairway, while their shots had taken a wilder route into the rough. The lesson? 'How near,' not 'how far'. Now, let's talk about those Royal Melbourne greens. Rumour had it, they were "super fast". Super fast? Imagine sliding a ball across your kitchen's polished tiles — yep, that rapid. Around the course, bunkers became my stern mentors — big, deep, and oh-so unforgiving. Post 18 holes, scorecards were in, followed by the triumphant crowning of winners over lunch. Rodney Ware (75 gross) and Kevin Naismith (81 gross) led in men's gross, while Wayne Moon (72 net) and Craig Lonsdale (73 net) dominated the net division. Melinda Crawford (16, scratch stableford) and Louise Yuen (29 handicap points) shone in the women's. Kudos to winners, fellow players, Royal Melbourne and Golf Australia for the unforgettable day. By the way, can you see yourself on those hallowed Royal Melbourne greens? If your inner golfer nods, I'm your cheerleader. Consider joining me for the 2024 Royal Melbourne Seniors Classic. And as I wrap up, let me leave you with the timeless words of the legendary Peter Thomson: "Golf is a game of how near, not how far". Until next time, keep those swings buttery, putts steadfast, and steer clear of those tricky bunkers. PS: My result? T43rd (net) among the 48 male players. Next time I'll be swinging even better. About the Writer: Mike Searles is a Melbourne retiree who's living the golfing dream. Image credits: Getty Images

Domestic Travel

Mystery object washed up on WA beach finally identified

Ok space enthusiasts and beachcombers. Here's one for the X-Files – Intergalactic Travel edition. Picture this: A strange and baffling object, looking like it's straight out of a sci-fi flick, decided to take a little trip to Green Head beach, about 250 kilometres north of Perth on the pristine WA coastline. As soon as the locals caught sight of this extraterrestrial-looking thingamajig, the news spread like wildfire, and it made international headlines faster than a speeding rocket, with all kinds of fascinating theories popping up as to what on Earth (or not on Earth) it could be. Was it a UFO? A top-secret government experiment gone awry? Well, turns out it was nothing that exciting. The Australian Space Agency put on their Sherlock Holmes hats and deduced that this enigmatic piece of debris probably came from a satellite launch vehicle. Eureka! Case closed! Of course, when something weird and otherworldly shows up on your doorstep, you can't be too careful. So, the local authorities played it safe and put the object under police guard for an entire week. (Better safe than sorry, right?) And who needs a red carpet when you have a front-end loader to transport your newfound cosmic artifact? The experts were summoned to figure out where this space junk came from, and they concluded it was most likely a fuel tank from some rocket launched by the Indian Space Research Organisation. Professor Alice Gorman from Flinders University explained to <a href="https://www.abc.net.au/news/2023-07-31/australian-space-agency-identifies-space-junk-green-head/102669472" target="_blank" rel="noopener">ABC News</a> that this fuel containment vessel was meant to fall off after launch. And it turns out that statistically, we've been pretty lucky not to have had more collisions with falling rocket parts. Imagine explaining that to your insurance company? "A rocket booster landed on my house. Is that covered?" But here comes the tricky part: What to do with all of this space garbage? Should they ship it back to India like some interstellar postcard, or leave it Down Under as an intergalactic souvenir? While India is technically (and legally) responsible for their space debris, they could decide to gift it to Australia if they so choose. It could be like an exotic space decoration for the country - "The Land of Kangaroos and Rocket Wreckage." Even better, the Green Head community itself appear to have come up with a few fabulous ideas. Forget the Sydney Opera House: let's make the space debris a tourist attraction! Move over, Eiffel Tower - we've got our own piece of space history right here. The WA Premier even suggested storing it next to space debris from NASA's Skylab space station (remember that?) in some kind of attempt to build a cosmic cabinet of curiosities. Of course, the local council is also very keen on keeping this celestial treasure. They're hoping the Indian government won't come back to claim it, to the point that everyone in the surrounding Shire of Coorow is buzzing with excitement over the possibility of having their very own space souvenir to draw crowds of star trekkers. And so while the mystery of the object on the beach has been solved, the debate over its fate is just beginning. Will it become a star attraction in a local park? Or will it be shipped off to India like an interplanetary package return? Only time will tell. Images: Nine News

Travel Trouble

Mysterious liquid turns popular rock pool green

A mysterious liquid has turned a popular public rock pool at Cronulla beach fluorescent green. The liquid, believed to be a natural fluorescent dye, fluorescein, was seen pouring into the usually clear waters of the pool on Friday. The dye is often used to help experts track the flow of water to identify any leaks and has low toxicity, which means it is harmless despite the daunting colour. “We believe the discolouration is likely to be fluorescein dye, which is commonly used in plumbing/drain testing and dissipates quickly once diluted,” a spokesperson for the New South Wales Environmental Protection Authority said. According to Australian dye manufacturer, Tintex, the dye is also used to “locate leaks in plumbing, tracing pipe locations, detect drain damage and water pathways,” and is odourless and non-toxic to the environment. However, in a safety data sheet, Tintex has also warned about the potential health effects which include eye irritation, skin irritation, irritation of the digestive tract and respiratory tract irritation. Many locals are cautious despite the claim that the dye is mostly harmless. One user wrote on a Facebook page for Cronulla locals that dye was “legal to use in a stormwater drain”. “Doesn’t look good whatever it is,” another responded, while other cautious residents replied that they wouldn’t swim in the area until the dye fully dissipates. Images: Facebook

Travel Trouble

How to make your next holiday better for the environment

<a href="https://theconversation.com/profiles/brendan-canavan-228682">Brendan Canavan</a>, <a href="https://theconversation.com/institutions/university-of-nottingham-1192">University of Nottingham</a> Being an environmentally friendly tourist can be challenging. Tourism is an industry that brings many <a href="https://www.unwto.org/EU-guidebook-on-sustainable-tourism-for-development">negative environmental impacts</a> – our pleasure often comes at the expense of local habitats or wildlife. Maya Bay on Thailand’s uninhabited Phi Phi Leh island became famous as the location of the 2000 Hollywood movie The Beach. But this led to rapid growth in visitors to the bay – as many as 8,000 a day at its peak – and put enormous strain on the bay’s natural habitats. In 2018, the bay was <a href="https://edition.cnn.com/travel/article/maya-bay-thailand-recovery-c2e-spc-intl/index.html">closed to tourists</a> for four years to let its coral reefs and wildlife recover. But tourism can also be an inspiring way to connect with oneself, with others and with new places. As tourists, we can learn, share and contribute to positive environmental practices. As a tourist, you also have influence. The money you spend, the social interactions you have and the resources you consume all <a href="https://www.sciencedirect.com/science/article/abs/pii/S0261517715300224?casa_token=TaXMOLW6Sp4AAAAA:PEnSG1AaAZ-MiuTNZ1wJfLRrzaNVIbaBsk1cKsP8M-_6KjruLO9tp09BqqzGnJTIZbN8_CoP4Q">help to shape an area</a>. So here are four pieces of advice for making your next holiday better for the environment. <h2>Spend locally</h2> We’ve all heard variations on the mantra “<a href="https://cleanisland.org/history-of-the-leave-only-footprints-initiative/#:%7E:text=%E2%80%9CTake%20only%20memories%2C%20leave%20only,the%20Leave%20Only%20Footprints%20program.">take only memories, leave only footprints</a>”. This message of less consumption and lower impact is a good ethos for environmentally sensitive tourism. The first thing to do is think about how you can leave more positive footprints behind. An excellent way to make the most of your economic footprint is to stay and shop in <a href="https://www.tandfonline.com/doi/full/10.1080/09669580802359293?casa_token=eNeLWWRPHxIAAAAA:9bT4S5-0O5b2JQWrYKgmjtDxrZzlv0P-H-9T2SoWT1fX6tFRkoVenNNcfmJbHV9ebhF2kP7XIEgz">independent businesses</a>. These businesses tend to pay local taxes and are owned by and employ local people. More of the money you spend stays in the immediate area as a result. Where tourist money directly benefits local people and businesses, their support for conservation is <a href="https://www.jstor.org/stable/pdf/26069456.pdf?casa_token=rdKkHk5QviUAAAAA:2ZCqsGG1f-2wFTIdmptbrJDVo8iPjYnam7QPdHXviRy_e0wA7YMY7fc0Qm1smIII4cg6_WriJ1OQwPvxMibmeHQxnO81NPd9jwoeVRudUS2TVv2TNeg">often encouraged</a>. Tourists <a href="https://www.sciencedirect.com/science/article/pii/S0261517709000120#sec5">visiting rhino sanctuaries</a> in Botswana, for example, bring income and support jobs. In 2010, the country’s Khama Rhino Sanctuary employed 26 permanent staff and many more casual labourers. This economic security can, in turn, prompt local people to appreciate the importance of protecting vulnerable animal species like rhinos. <a href="https://www.tandfonline.com/doi/abs/10.1080/09669582.2021.1932927?casa_token=rffO3wgsu6UAAAAA:7dounwsgVunXCW4-NERDNDX9Ks_OVfa3z5TfZDojAdiVVKuXbU52_3DnRNfALNjMCW0PzGPPOu0MQQ">Separate research</a> on people living around Kenya’s Maasai Mara nature reserve found that people whose livelihoods were dependent on tourism were more likely to support efforts to conserve local wildlife. <figure class="align-center "><img src="https://images.theconversation.com/files/524360/original/file-20230504-19-znuosc.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/524360/original/file-20230504-19-znuosc.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=400&fit=crop&dpr=1 600w, https://images.theconversation.com/files/524360/original/file-20230504-19-znuosc.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=400&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/524360/original/file-20230504-19-znuosc.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=400&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/524360/original/file-20230504-19-znuosc.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=503&fit=crop&dpr=1 754w, https://images.theconversation.com/files/524360/original/file-20230504-19-znuosc.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=503&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/524360/original/file-20230504-19-znuosc.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=503&fit=crop&dpr=3 2262w" alt="Two white rhinos drinking from a pond." /><figcaption>Two white rhinos at Khama Rhino Sanctuary, Botswana. <a class="source" href="https://www.shutterstock.com/image-photo/white-rhinoceros-ceratotherium-simum-squarelipped-khama-2060738441">Al Carrera/Shutterstock</a></figcaption></figure> <h2>Tread lightly</h2> Tourism creates waste and uses up resources. Treading carefully will minimise the environmental impact you have on your holiday destination. A simple way to lower your environmental footprint is to use fewer resources at every stage of your holiday. A single tourist uses <a href="https://www.e-unwto.org/doi/pdf/10.18111/9789284414529">300 litres</a> of water in their holiday accommodation on average each night. Reusing towels, flushing the toilet less and shortening your shower time can all help to reduce demand for water resources. Thinking about the footprints you leave as a tourist is a useful mindset. You may even become more aware of the positive legacy you can leave behind. Learn about the local area and the environmental issues that matter there. If habitat loss is a problem, contribute to local organisations that support conservation. Organisations like the <a href="https://www.nationaltrust.org.uk/holidays">National Trust</a> even offer holidays in the UK that help to fund their work. <h2>Place matters</h2> Tourism shifts you away from the familiar and gives you <a href="https://www.sciencedirect.com/science/article/abs/pii/S0160738312001211?casa_token=zHTCleS_F3kAAAAA:jWMOOtEJzH8OXySUqafP5Z7koLFOtNSJ2Ik4ncoA9wPCHTW-1MRNJJwRvYtoopoSqCwTRm_TeA">space for self-reflection</a>. Research has found that people have been <a href="https://www.tandfonline.com/doi/abs/10.1080/02508281.2017.1342349?role=button&needAccess=true&journalCode=rtrr20">inspired by travel to make life changes</a> such as relocating or shifting career. Many keen rock climbers, for instance, adopt a <a href="https://www.tandfonline.com/doi/pdf/10.1080/17450101.2014.977667?casa_token=gCsYfe0mSDkAAAAA:q8f6HbQ9rlwXS5_DGl3De1XUnHXX6U0EC3QUNz65pFivUgPo7RDH0-zGXvspjrTrv73FKkouDPM-">minimalist and mobile lifestyle</a>. <a href="https://www.tandfonline.com/doi/full/10.1080/14616688.2012.762691?needAccess=true">One study</a> on climbers’ lifestyles in the US showed that the challenges of life on the road, gatherings at campgrounds and the considerable amount of time spent in nature can be enriching. Rock climbers’ lifestyles are inspired by and connected to natural settings. And many alternative types of tourism are too. These tourists can become powerful advocates for the protection of the places they care deeply about. Surf tourists, for example, have driven <a href="https://www.sas.org.uk/">various campaigns</a> against the discharge of sewage into UK bathing waters. You and those you travel with can be similar cheerleaders for the places you care about. Join organisations fighting for their conservation, contribute to their sustainable development and share your appreciation of these places with others. <h2>Stay curious</h2> A final thing you can do as a tourist is to keep exploring. It can be tempting to stay in a <a href="https://www.jstor.org/stable/pdf/40970087.pdf?casa_token=zGlcyUgr_JcAAAAA:TzIuU8wrbvXyjAxawpea1Nw35y-5DSZX-MShnpndR4iEwzOQqCul3Hn61SFdotC4dO3hMZ6ddpOI-O0v45K7Jwo6TY9I4FVbUaE8QMuGo7qsBFbvbXE">tourist bubble</a> and not leave the confines of your resort or stick with familiar travel groups and activities. Cruises are a classic example of bubble tourism. The places visited do not really matter; the floating hotel is the main attraction. But cruise tourism rarely benefits local populations and brings <a href="https://www.sciencedirect.com/science/article/abs/pii/S0261517717302418?casa_token=dz_gzPmnVTsAAAAA:o6WggzlegsnTGIh9__NvL7POYKzGB3pHd44TNswicbl0sOSc5uTUYG-G_qZroQ3gaQVchZR5Gw">significant negative environmental impacts</a>. In the Trujillo Bay area of Honduras, for example, <a href="https://www.sciencedirect.com/science/article/pii/S0261517717302418?casa_token=DDSyzNJhU5sAAAAA:vqMQqzyKJMXHLZmVfcuYesAmc-0KsqzR8GdX97r0AzecrnXCRPNMC7_lHBKyqYKzLbMoHh83zQ#sec7">increases in garbage and sewage</a> have been reported since commercial cruise tourism began operating in the area in 2014. <figure class="align-center "><img src="https://images.theconversation.com/files/524072/original/file-20230503-28-w8obuy.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/524072/original/file-20230503-28-w8obuy.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=402&fit=crop&dpr=1 600w, https://images.theconversation.com/files/524072/original/file-20230503-28-w8obuy.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=402&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/524072/original/file-20230503-28-w8obuy.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=402&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/524072/original/file-20230503-28-w8obuy.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=505&fit=crop&dpr=1 754w, https://images.theconversation.com/files/524072/original/file-20230503-28-w8obuy.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=505&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/524072/original/file-20230503-28-w8obuy.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=505&fit=crop&dpr=3 2262w" alt="A beach full of tourists from the cruise ship moored nearby." /><figcaption>A cruise ship moored near Mahogany Bay beach, Honduras. <a class="source" href="https://www.shutterstock.com/image-photo/mahogany-bay-beach-full-tourists-cruise-1647866578">Ramunas Bruzas/Shutterstock</a></figcaption></figure> Similar concerns have prompted calls to restrict cruise tourism in popular European destinations like <a href="https://www.theguardian.com/world/2022/jul/25/cruise-passengers-shuttled-into-venice-by-motor-boat-to-dodge-big-ships-ban">Venice</a>, <a href="https://www.euronews.com/travel/2022/09/01/stop-cruises-50000-people-sign-petition-to-regulate-polluting-ships-in-marseille">Marseille</a> and <a href="https://www.theguardian.com/world/2023/apr/09/a-plague-of-locusts-barcelona-battles-port-authorities-to-curb-cruise-tourists">Barcelona</a>. In 2022, more than 50,000 people signed a petition to ban cruise ships from Marseille. Going beyond familiar or fashionable tourist bubbles can help you avoid such negative associations. <a href="https://www.sciencedirect.com/science/article/pii/S0261517709001113?casa_token=SHXc1sqnFOkAAAAA:T8KwGbxBT_jHQv1RMWfJaQagU4C_XnnOKxxwNqODHpboL6YRkzRsr-C9W6mgRHQDa-M6vcAYAA#sec7">Short-haul city breaks</a> are a more environmentally friendly option. Travellers to these destinations are more likely to use means of transportation that are associated with <a href="https://www.gov.uk/government/statistics/transport-and-environment-statistics-autumn-2021/transport-and-environment-statistics-autumn-2021#:%7E:text=The%20biggest%20contributors%20to%20this,of%20emissions%2C%2019%20MtCO2e%20">less CO₂ emissions</a> than long-haul travel, such as <a href="https://www.sciencedirect.com/science/article/pii/S0959652613005131?casa_token=INw7hbOMnDEAAAAA:Do8AzrmSnJZtOHdqWtc7QLFhgrWF520ej0-_gt0rcZmhzyLGT5DSS3SdmRR6tnxC3qtOHXIThQ">trains or coaches</a>. And in urban areas, their activities are likely to take place in a concentrated geographical area. Thinking about the footprints you leave and the memories you take can help you to become a more environmentally aware tourist. Leave positive imprints behind, tread carefully, put yourself out there and keep exploring. This is a mantra to adopt and share with your travel groups to get the most out of your holiday experiences while simultaneously reducing your impact on the planet.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/203445/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/brendan-canavan-228682">Brendan Canavan</a>, Senior Lecturer in Marketing, <a href="https://theconversation.com/institutions/university-of-nottingham-1192">University of Nottingham</a> This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-to-make-your-next-holiday-better-for-the-environment-203445">original article</a>. Images: Getty

International Travel

"Downhearted": Rod Stewart reveals sad reason for cancellation

Fans of Rod Stewart, Cyndi Lauper and Jon Stevens were left devastated after the trio’s highly anticipated performance was cancelled hours before they were due to take the stage. The sad announcement was made just after midday, with the trio set to perform at 4 pm at A Day on the Green festival in Mt Duneed Estate in Geelong, Victoria. Stewart took to Instagram to share his heartfelt apology, “Hello, my friends. I’m absolutely downhearted that I’m disappointing my fans who bought tickets to A Day on the Green. “Late this morning I was advised that I have a viral infection and my throat is too irritated to sing. I’m only human and sometimes get sick just like you do. “My greatest joy is performing for you, so I’m doing everything I can to get on the mend and back on stage!” <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-captioned="" data-instgrm-permalink="https://www.instagram.com/p/Cp7XzziNTVN/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/Cp7XzziNTVN/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Sir Rod Stewart (@sirrodstewart)</a> </div> </blockquote> On Saturday, the promoters of the event posted an online statement confirming that the show was cancelled. The statement read: “Live Nation and Roundhouse Entertainment regret to announce that tonight’s performance, Saturday 18 March 2023, by Rod Stewart, Cyndi Lauper and Jon Stevens at Mt. Duneed Estate, Geelong will not go ahead, due to illness.” Ticketmaster also apologised for the cancellation and to hold on to their tickets while they wait for further updates regarding the show. Hundreds of fans have shared their disappointment, with some saying they had travelled just for the show. “Would’ve been good to receive an email/text and not have to find out from a random in a cafe. Booked a weekend away for my mother-in-law’s 60th birthday which is today, we’re beyond devastated,” one person commented in an Instagram post from A Day on the Green. “A text or email would have been lovely, we just arrived after driving 5 hours and our notification was the sign out the front. This was my partner's dads Christmas present,” commented another. <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-captioned="" data-instgrm-permalink="https://www.instagram.com/p/Cp6WmRLOsHo/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/Cp6WmRLOsHo/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by A Day On The Green (@adayonthegreenofficial)</a> </div> </blockquote> Others have expressed their sympathy in response to the statement shared by Stewart. “It's all good Sir Rod.. Take care of your people first.. The rest can be sorted out afterwards…” wrote one user. “I hope it's nothing too serious. Sending hugs. 💜” shared another fan. “Hope you feel better soon. Must have been an awful decision to make to cancel at such short notice,” wrote a third. Image: Oscar Gonzalez/Getty Images

Music

How Jamie Durie is revolutionising greener building

Jamie Durie is using his knowledge and expertise to help educate people on the importance of greener building. The celebrity gardener has partnered with Victorian boutique builder <a title="Chatham Homes" href="https://chathamhomes.com.au/" target="_blank" rel="noopener">Chatham Homes</a>, to help the home construction industry in confronting the challenges of living through the ongoing climate crisis. Jamie told <a href="https://www.nine.com.au/property/homes/how-jamie-durie-is-encouraging-greener-building/a751b122-af38-48e7-a729-b961eafb5a78" target="_blank" rel="noopener">Nine</a> that he doesn't know "of any other builder in Australia that has gone to these sorts of lengths to ensure Australian families and the environment end up with a healthier future." Through his work, Jamie said he is particularly keen on shedding light on the damaging nature of VOCs (Volatile Organic Compounds) that can be found in the home. With Jamie's assistance, Chatham Homes has made it their priority to ensure their homes are not only using low VOC paint, but also zero VOC glue in their joinery systems. VOCs are described as a large group of chemicals that are found in the products used to construct and maintain our homes, and can be found in paints, upholstery, glue and laminates. According to the <a title="Australian Government's Department of Climate Change, Energy, the Environment and Water" href="https://www.dcceew.gov.au/environment/protection/npi/substances/fact-sheets/total-volatile-organic-compounds" target="_blank" rel="noopener">Australian Government's Department of Climate Change, Energy, the Environment and Water</a>, dangerous side effects of inhaling VOCS can include irritation to the eyes, nose and throat, loss of coordination, nausea, and damage to the liver, kidney and central nervous system. "There are a lot of builders out there who don't know what VOCs are," Jamie tells Nine. "And you look at Chatham and they're not only using low VOC paints, they're using zero VOC glue in their joinery systems. It's really quite amazing." "They proof-test the entire home, they vacuum-test. So it's an 8.2 energy star rating which is the highest level of any home builder in Australia." Jamie reveals that the impacts of VOCs are only starting to become common knowledge. "The average new home has around 20 times the acceptable level of VOCs that a human being should experience. A lot of it is just coming to the surface," he says. "It's about building healthy buildings and providing wellbeing to Australian families. A lot of people don't realise these VOCs are carcinogenic." "[Chatham Homes] have taken it upon themselves to investigate and incorporate these as standard building practices in all their homes," says Jamie. Image credits: Instagram

Real Estate

Paul Green farewelled

NRL legend Paul Green has been farewelled in an emotional service in Queensland following his devastating death. The legendary coach and former player was just 49 when he was found dead at his home in Brisbane on August 11. More than 700 people attended the service at Kougari Oval, the Wynnum-Manly Seagulls’ home ground, including rugby league greats Allan Langer, Andrew Gee, Shane Webcke, Ben Ikin and Jason Taumalolo. John Lang, Steve Renouf, Wendell Sailor, Lote Tuqiri, Todd Payten, Neil Henry, Brad Thorn, Kevin Walters, Brad Fittler, Trent Robinson and Bryan Fletcher were also in attendance. Paul Green’s wife Amanda delivered a heartfelt speech speaking of when the pair met and their love for one another. “Paul and I met at the Mad Cow in Townsville, an establishment of many relationships,” she said. “The day Paul proposed he said to me you better strapped yourself because it’s going to be one hell of a ride, and that it was. “We had the deepest love and he made me feel deeply loved … we’ve always been a team. “As heartbroken as I am today, I’ve loved every moment with Paul. I loved you yesterday, I love you today and I will love you tomorrow.” <blockquote class="twitter-tweet"> Paul Green’s wife Amanda has delivered the most moving tribute to her late husband as family and friends remember the legendary player and coach. Pictures from the service: <a href="https://t.co/bBOWY77XFj">https://t.co/bBOWY77XFj</a> <a href="https://t.co/dTDjE93KJ5">pic.twitter.com/dTDjE93KJ5</a> — Courier Mail Sport (@cmail_sport) <a href="https://twitter.com/cmail_sport/status/1564426956770201601?ref_src=twsrc%5Etfw">August 30, 2022</a></blockquote> Their daughter Emerson then got up and delivered a heart-warming speech saying she will cherish their memories forever. “He always knew what to say and when to say it. He would always tell you it doesn’t matter what people think of you,” she said. “He knew how to bust a move and liked to think he had an amazing voice. If there was music on, I could always count on Dad dragging me onto a dancefloor. “He taught me to be the best version of myself. I will cherish our memories forever and will continue to do you proud. “I was always your little angel, but now you are mine.” Jed also said a few words, thanking his dad for being the “best dad ever”. “Thanks for being the best dad ever. You were so silly sometimes and that you made the best dad,” he said. “I am going to miss you so much.” Paul’s family announced a few weeks after his death that they <a href="https://www.oversixty.com.au/health/body/paul-green-s-brain-donated-to-science" target="_blank" rel="noopener">donated his brain to science</a>. The Australian Sports Brain Bank said Paul’s brain will help aid research into concussion-related condition chronic traumatic encephalopathy (CTE) - a common injury amongst NRL players due to the nature of the game. "In memory of our beloved Paul, we ask that you support the pioneering work of the Australian Sports Brain Bank,” their post read. "Paul was known for always looking out for others. We are proud that part of his legacy will be looking out for the brain health of all others involved in the game that he loved. "Amanda, Emerson and Jed." Paul had an incredible NRL career, playing 162 first grade matches between 1994-2004 and winning the prestigious Rothmans Medal in 1995 as the game's best and fairest. He played for several different clubs including Cronulla-Sutherland Sharks, North Queensland Cowboys, Sydney Roosters, Parramatta Eels and the Brisbane Broncos. Green eventually swapped his playing boots to coaching ones as he took on the North Queensland Cowboys from 2014-2020. If you are experiencing a personal crisis or thinking about suicide, you can call Lifeline 131 114 or beyondblue 1300 224 636 or visit lifeline.org.au or beyondblue.org.au. Images: Twitter

Caring

"It's mad!" Steve Price goes ballistic over Greens rent freeze proposal

Steve Price has clashed with a Greens MP over their party's idea of a rent freeze, calling the proposal "mad". Greens MP Max Chandler-Mather spoke with the The Project on Thursday night to discuss the Greens' proposal, which was met with a frosty reception. Earlier this week, The Greens urged the government to impose a nationwide rent freeze for two years, citing the sharp increases in rent that have outstripped wage rises in recent months. The minor party has also called for future rent increases, beyond the proposed freeze period, to be capped at 2 per cent every two years. When Mr Chandler-Mather explained the proposal to the panel, the questions came flooding in. “Max, this does sound vaguely like socialism, possibly even communism. How would it work in practice?” host Hamish Macdonald asked. “I wouldn’t call it socialism or communism. I’d call it what is being done around the world, and (what has) worked. Victoria froze rents for six months during the pandemic, and what we are saying now is we are in a worse housing crisis even than in the pandemic, and we need an urgent national response," Mr Chandler-Mather replied. “What we’re proposing today is a two-year national rent freeze, because rents are out of control. They’ve increased seven times faster than wages since the pandemic began.” “It is not a crazy proposal ... I think it is a moderate proposal for what is a national crisis," he said. As he went on to cite other global examples of a similar scheme working to protect renters, Steve Price jumped in. “Max, you call it moderate. I call it mad,” he said. “What do you say to landlords who, over the next two years or so, are going to have an increase to their mortgage repayments, council rates are going up, repairs on rental properties are going up, it’s hard to get tradesmen – they are just expected to wear this increase in cost with no rent going up." “They’re going to bail on the market, they’re going to sell their properties, and you’re going to collapse the real estate market. It’s mad, mate!” “Well I don’t think the real estate market collapsed in Victoria when they froze rents for six months,” Mr Chandler-Mather said. “There was a six-month rent freeze in Victoria, but similarly in British Colombia or in New York or Scotland-” said the Greens MP. Price interrupted saying, “We’re not in British Columbia, New York or Scotland, we’re in Australia.” “We’ve got a rental system that works. There are a lot of great landlords. There are even landlords who, during Covid, made the rent cheaper for people because they wanted to look after good tenants. You’re trying to blow up a system that actually works.” “I think you just need to talk to the 2.7 million renters who are in severe rental stress at the moment and ask them if the housing market is working,” countered Mr Chandler-Mather. The pair continued their feisty back and forth before the interview drew to a close, where Macdonald thanked the MP for being “a good sport”. Image credits: The Project

Real Estate

Paul Green’s brain donated to science

Paul Green’s brain has been donated to the Australian Sports Brain Bank to help with science. The legendary coach and former player Paul Green was just 49 when he <a href="https://oversixty.com.au/news/news/rugby-league-icon-dead-at-49" target="_blank" rel="noopener">was found dead</a> at his home in Brisbane on August 11. It is confirmed that the father-of-two died from suicide. His family has now confirmed that his brain will be donated to the <a href="https://www.mycause.com.au/page/290298/in-memory-of-paul-green" target="_blank" rel="noopener">Australian Sports Brain Bank</a> to help aid research into concussion-related condition chronic traumatic encephalopathy (CTE) - a common injury amongst NRL players due to the nature of the game. "In memory of our beloved Paul, we ask that you support the pioneering work of the Australian Sports Brain Bank,” their post read. "Paul was known for always looking out for others. We are proud that part of his legacy will be looking out for the brain health of all others involved in the game that he loved. "Amanda, Emerson and Jed." They are hoping to raise $150,000 to help with the research. Michael Buckland, the director of the Australian Sports Brain Bank, thanked Green’s family for their donation. "This is an incredibly generous donation and will be an invaluable part of our research into the long-term effects of repetitive head impacts in sport and elsewhere," he said. "We at the Australian Sports Brain Bank are blown away by the fact that in their time of grief, Amanda and the rest of the family thought of how they could help others." Green had an incredible NRL career, playing 162 first grade matches between 1994-2004 and winning the prestigious Rothmans Medal in 1995 as the game's best and fairest. He played for several different clubs including Cronulla-Sutherland Sharks, North Queensland Cowboys, Sydney Roosters, Parramatta Eels and the Brisbane Broncos. Green eventually swapped his playing boots to coaching ones as he took on the North Queensland Cowboys from 2014-2020. If you would like to donate to the research, click <a href="https://www.mycause.com.au/page/290298/in-memory-of-paul-green" target="_blank" rel="noopener">here</a>. If you are experiencing a personal crisis or thinking about suicide, you can call Lifeline 131 114 or beyondblue 1300 224 636 or visit <a href="https://www.lifeline.org.au/">lifeline.org.au</a> or <a href="https://www.beyondblue.org.au/">beyondblue.org.au</a>. Image: Australian Sports Brain Bank

Body

NRL great's cause of death sparks emotional pleas

Content warning: This article includes mentions of suicide. TV personality and mental health advocate Gus Worland has issued an emotional plea to Australians to ask for help when they need it in the wake of the sudden death of Paul Green. The 49-year-old NRL coach was found dead on Thursday, with the cause of death later revealed to be suicide. Police were called to Green’s family home in Brisbane after he was found unresponsive in the garage. A police spokeswoman told the <a href="https://www.dailymail.co.uk/sport/nrl/article-11101165/How-Paul-Green-died-Police-speak-cause-death.html" target="_blank" rel="noopener">Daily Mail Australia </a>that Green was declared dead by paramedics at the scene, saying that the circumstances surrounding his death are not suspicious. Worland - the founder of the Gotcha4Life charity - spoke to Nine’s NRL broadcast in the wake of Green’s death, sharing a message for the nation. <blockquote class="twitter-tweet"> Important words from <a href="https://twitter.com/GusWorland?ref_src=twsrc%5Etfw">@GusWorland</a> on a very sad day. Please talk to someone. I’m always here for my Twitter friends, as I know you all are for me. ❤️ <a href="https://t.co/IWtz3uySuL">https://t.co/IWtz3uySuL</a> — Gavin Flanagan (@gavflano) <a href="https://twitter.com/gavflano/status/1557687402696962048?ref_src=twsrc%5Etfw">August 11, 2022</a></blockquote> “Seven Australian men that wake up this morning won't wake up tomorrow morning, two women, and we have people attempting suicide at such a rapid rate," Worland said. "It was so sad to hear about Greeny, and I think this is a line in the sand as a sport and as a nation to say enough is enough. "Let's stop talking about it, let's stop talking about awareness, let's put some action into place. "It's all about manning up and speaking up now, not manning up and shutting up, which is what we've been told all our lives to do. "Put your hand up if you need some help and support. That's the bravest thing you can do, ask for help when you need it. "Why are we so good in this country at helping people, but not at asking for help? That's what we need to change." Nine News presenter Peter Overton echoed Worland’s message during the 6pm bulletin on Thursday, calling for Aussies to speak up about their mental health. “If you are struggling with your mental health, please talk to someone,” he began. “Ask, ‘Are you OK?’ “Take a friend for a coffee, a walk; confide in your GP. “Share your feelings with your family. “Just talk to someone. You might be surprised how many people you know have the same struggles. “You are not alone. “One of the best places you can call is Lifeline. They are there to listen, they are there to help.” Green’s passing comes 11 months after he was sacked as the head coach of the Maroons, having been in the role, which he described as “every Queenslander’s dream”, for just a year. As the coach for the North Queensland Cowboys, Green took the team to their first ever premiership in 2015 and stayed in charge until the end of 2020, when he was replaced by Todd Payten. Following his departure from the Maroons, Green had been in talks with Wayne Bennett about making a return to NRL and joining the Dolphins, who enter the competition next year. Laurence Lancini, a former chairman of the Cowboys, told the <a href="https://www.couriermail.com.au/sport/nrl/paul-green-death-cowboys-pay-tribute-and-reveal-devastating-detail-of-his-passing/news-story/5e687ee90f3a5e183f618fcd8e407337" target="_blank" rel="noopener">Courier Mail</a> that Green seemed fine when they spoke just three days before his death and said they should catch up for a beer soon. But, he said “the last few years had been tough” for Green. “Greeny mentioned he was keen to coach again and had some options and I asked Greeny if he really wanted to go back into it again,” Lancini said. “I said to Paul, the last club you coached, you took the Cowboys to the premiership and you took us to two grand finals. Just leave coaching behind and do something else. “But Greeny still had that real drive. He wanted to coach again. “Greeny has come from a position where he coached a club to a premiership and a second grand final. He has coached State of Origin. He has coached at the highest levels and I think Greeny was a bit lost and confused about where his life needed to be without coaching. “The thing about Greeny is he was a high achiever and high achievers always want to be achieving something. “The last few years have been a bit tough on him because he hasn’t been coaching in the NRL. “I said to Greeny, just take your time and the right opportunity will come along.” If you are experiencing a personal crisis or thinking about suicide, you can call Lifeline 131 114 or beyondblue 1300 224 636 or visit <a href="https://www.lifeline.org.au/" target="_blank" rel="noopener">lifeline.org.au</a> or <a href="https://www.beyondblue.org.au/" target="_blank" rel="noopener">beyondblue.org.au</a>. Image: Getty Images

Caring

Rugby League icon dead at 49

The NRL world is in mourning following the death of legendary coach and former player Paul Green at the age of 49. The premiership-winning coach had reportedly not complained about any illness and was found dead at his home in Brisbane on Thursday. A post-mortem will be carried out to determine his cause of death. Former Melbourne Storm and Maroons hooker Cameron Smith, who was coached by Green in the earlier days said he was “heartbroken” upon hearing the news. “A very sad part of the day,” he said. “It’s certainly rocked myself…and everyone in the rugby league world. “It’s a sad day for everyone involved in the rugby league family and community. We send our best wishes and condolences out to the entire Green family. “I was fortunate enough, he was my kicking and catching coach when I was coming through at the Broncos and he was also my coach when I was at Wynnum. “I had a small amount to do with him but in the time I did, it was actually really interesting the year I was at Wynnum I ended up signing with another club to leave but we had a really tough start to the season. Greeny managed to turn the Wynnum Seagulls around and we won the premiership that year. “He’s a fighter. It’s a very sad day to see Greeny go like that.” Green had an incredible NRL career, playing 162 first grade matches between 1994-2004 and winning the prestigious Rothmans Medal in 1995 as the game's best and fairest. He played for several different clubs including Cronulla-Sutherland Sharks, North Queensland Cowboys, Sydney Roosters, Parramatta Eels and the Brisbane Broncos. Green eventually swapped his playing boots to coaching ones as he took on the North Queensland Cowboys from 2014-2020. He helped the Cowboys finally win their first ever premiership in 2015. Green last coached Queensland’s State of Origin side in 2021 and was due for a comeback into coaching in 2023 with the new NRL team, Dolphins. Green is survived by wife Amanda and children Emerson and Jed. Image: Getty

News

Meteors seem to be raining down on New Zealand, but why are some bright green?

<h1 class="legacy">Meteors seem to be raining down on New Zealand, but why are some bright green?</h1> <figure><img src="https://images.theconversation.com/files/476788/original/file-20220731-19335-76trxr.jpg?ixlib=rb-1.1.0&rect=5%2C304%2C3828%2C1851&q=45&auto=format&w=754&fit=clip" /><figcaption>Greg Price, Author provided</figcaption></figure> <a href="https://theconversation.com/profiles/jack-baggaley-1366298">Jack Baggaley</a>, <a href="https://theconversation.com/institutions/university-of-canterbury-1004">University of Canterbury</a> New Zealand may seem to be under meteor bombardment at the moment. After a <a href="https://theconversation.com/equivalent-to-1-800-tonnes-of-tnt-what-we-now-know-about-the-meteor-that-lit-up-the-daytime-sky-above-new-zealand-186636">huge meteor exploded</a> above the sea near Wellington on July 7, creating a sonic boom that could be heard across the bottom of the South Island, a smaller fireball was captured two weeks later above Canterbury. <a href="https://fireballs.nz/">Fireballs Aotearoa</a>, a collaboration between astronomers and citizen scientists which aims to recover freshly fallen meteorites, has received a lot of questions about these events. One of the most frequent is about the bright green colour, and whether it is the same green produced by auroras. <figure class="align-center "><img src="https://images.theconversation.com/files/476789/original/file-20220731-20-zrewrz.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/476789/original/file-20220731-20-zrewrz.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=399&fit=crop&dpr=1 600w, https://images.theconversation.com/files/476789/original/file-20220731-20-zrewrz.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=399&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/476789/original/file-20220731-20-zrewrz.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=399&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/476789/original/file-20220731-20-zrewrz.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=502&fit=crop&dpr=1 754w, https://images.theconversation.com/files/476789/original/file-20220731-20-zrewrz.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=502&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/476789/original/file-20220731-20-zrewrz.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=502&fit=crop&dpr=3 2262w" alt="An image of an aurora australis" /><figcaption>An aurora australis observed from the international space station. Wikimedia Commons, <a class="license" href="http://creativecommons.org/licenses/by-nd/4.0/">CC BY-ND</a></figcaption></figure> Green fireballs have been reported and filmed in New Zealand regularly. Bright meteors often signal the arrival of a chunk of asteroid, which can be anywhere between a few centimetres to a metre in diameter when it comes crashing through the atmosphere. Some of these asteroids contain nickel and iron and they hit the atmosphere at speeds of up to 60km per second. This releases an enormous amount of heat very quickly, and the vapourised iron and nickel radiate green light. But is this the same as the bright green of an aurora? For the most recent meteor, the answer is mainly no, but it’s actually not that simple. <h2>The colours of a meteor trail</h2> The green glow of the aurora is caused by oxygen ions in the upper atmosphere, created by collisions between atmospheric oxygen molecules and particles ejected by the sun. These oxygen ions recombine with electrons to produce oxygen atoms, but the electrons can persist in an excited state for several seconds. In an energy transition known as “forbidden” because it does not obey the usual quantum rules, they then radiate the auroral green light at 557nm wavelength. A meteor can also shine by this route, but only if it’s extremely fast. Very fast meteors heat up in the thin atmosphere above 100km where auroras form. If you want to see a green auroral wake from a meteor, watch out for the Perseid meteor shower, which has now started and will peak on August 13 in the southern hemisphere. Also arriving at about 60km per second, the Perseids are extremely fast bits of the <a href="https://www.space.com/33677-comet-swift-tuttle-perseid-meteor-shower-source.html">comet Swift-Tuttle</a>. Some Perseids trail a beautiful, glowing and distinctly green wake behind them, particularly at the start of their path. Once the Canterbury meteor hit on July 22, the capricious winds of the upper atmosphere twisted the gently glowing trail, resulting in a pale yellow glow towards the end (as seen in the GIF below, also recorded by Greg Price for an earlier meteor). This is caused by sodium atoms being continually excited in a catalytic reaction involving ozone. <img src="https://cdn.theconversation.com/static_files/files/2231/The_22_July_meteor_-_persistent_train_-_credit_Greg_Price.gif?1659310010" width="100%" /> <h2>Are we being bombarded by meteors?</h2> Yes and no. The arrival of big, booming green meteors and the dropping of meteorites isn’t rare in New Zealand, but it is rare to recover the rock. Fireballs Aotearoa is working to improve the recovery rate. In an average year, perhaps four meteorites hit New Zealand. We’re encouraging citizen scientists to build their own meteor camera systems so they can catch these events. By comparing the meteor against the starry background and triangulating images caught by multiple cameras, we can pin down the meteor’s position in the atmosphere to within tens of metres. <figure class="align-center "><img src="https://images.theconversation.com/files/476790/original/file-20220731-43929-h2dp31.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/476790/original/file-20220731-43929-h2dp31.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=450&fit=crop&dpr=1 600w, https://images.theconversation.com/files/476790/original/file-20220731-43929-h2dp31.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=450&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/476790/original/file-20220731-43929-h2dp31.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=450&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/476790/original/file-20220731-43929-h2dp31.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=566&fit=crop&dpr=1 754w, https://images.theconversation.com/files/476790/original/file-20220731-43929-h2dp31.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=566&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/476790/original/file-20220731-43929-h2dp31.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=566&fit=crop&dpr=3 2262w" alt="The July 22 meteor as seen by a specialised meteor camera near Ashburton." /><figcaption>The July 22 meteor as seen by a specialised meteor camera near Ashburton. Campbell Duncan/NASA/CAMS NZ, Author provided</figcaption></figure> Not only does that help us find the rock, but it tells us what the pre-impact orbit of the meteoroid was, which in turn tells us which part of the solar system it came from. This is a rather efficient way of sampling the solar system without ever having to launch a space mission. <figure class="align-center "><img src="https://images.theconversation.com/files/476791/original/file-20220731-31484-7i4x0t.png?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/476791/original/file-20220731-31484-7i4x0t.png?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=440&fit=crop&dpr=1 600w, https://images.theconversation.com/files/476791/original/file-20220731-31484-7i4x0t.png?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=440&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/476791/original/file-20220731-31484-7i4x0t.png?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=440&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/476791/original/file-20220731-31484-7i4x0t.png?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=553&fit=crop&dpr=1 754w, https://images.theconversation.com/files/476791/original/file-20220731-31484-7i4x0t.png?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=553&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/476791/original/file-20220731-31484-7i4x0t.png?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=553&fit=crop&dpr=3 2262w" alt="Map of witness reports and cameras." /><figcaption>Witness reports and high-resolution meteor cameras help to calculate a meteor’s trajectory. This map shows the approximate trajectory of the July 22 meteor at the top of the red shape in the centre. Fireballs Aotearoa and International Meteor Association, Author provided</figcaption></figure> Fireballs Aotearoa is rapidly populating Otago with meteor cameras and there are half a dozen more in other parts of the South Island. The North Island isn’t well covered yet, and we’re keen for more people (in either island) to build or buy a meteor camera and keep it pointed at the sky. Then next time a bright meteor explodes with a boom above New Zealand, we may be able to pick up the meteorite and do some good science with it. <hr /> Many thanks for the input from Jim Rowe of the UK Fireball Alliance, and Greg Price who photographed the July 22 meteor and the persistent train.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/187836/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/jack-baggaley-1366298">Jack Baggaley</a>, Professor Emeritus Physics and Astronomy, <a href="https://theconversation.com/institutions/university-of-canterbury-1004">University of Canterbury</a> This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/meteors-seem-to-be-raining-down-on-new-zealand-but-why-are-some-bright-green-187836">original article</a>.

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