Bleach, Please: Why This New Coral Reef Study Should Be A Wake Up Call
- Words by Peppermint
Word on the reef is in – and it’s grim. A peer-reviewed study (the first of its kind) by a team of marine scientists from The University of Sydney paints a stark picture of the state of the southern Great Barrier Reefs: In early 2024, marine heatwaves left coral colonies bleached at “catastrophic levels”.
IMAGES COURTESY OF THE UNIVERSITY OF SYDNEY / ABOVE: Bleached Acropora table coral, One Tree Island Reef, April 2024.
ABOVE: One Tree Island reef ‘gutter’ coral pre-bleaching – April 2022
Led by Professor Maria Byrne from the School of Life and Environmental Sciences, the research highlights the alarming impact of unprecedented marine heatwaves on coral ecosystems, raising urgent concerns for marine biodiversity and the communities that depend on these vital ecosystems.
The study, published in Limnology and Oceanography Letters, provides critical insights into the extent of coral bleaching and mortality during the 2023-2024 global marine heatwave. The research team meticulously tracked the health of 462 coral colonies at the University of Sydney’s Great Barrier Reef research station at One Tree Island over a period of 161 days.
The results revealed that 66% of the colonies were bleached by February 2024 and 80% by April. By July, 44% of the bleached colonies had died, with some coral experiencing a staggering 95% mortality rate.
Coral reefs aren’t just biodiversity hotspots, but also crucial for food security and coastal protection, says Professor Maria Byrne, lead author of the study. “Our findings underscore the urgent need for action to protect coral reefs. The southern Great Barrier Reef, despite its protected status, was not immune to the extreme heat stress that triggered this catastrophic bleaching event.”
ABOVE: Acropora and Porites bleached coral at One Tree Island Reef, April 24.
Professor Ana Vila Concejo, a co-author of the study from the School of Geosciences, said: “This research is a wake-up call for policymakers and conservationists. The resilience of coral reefs is being tested like never before, and we must prioritise strategies that enhance their ability to withstand climate change. Our findings underscore the need for immediate and effective management interventions to safeguard these ecosystems.”
This research is a wake-up call for policymakers and conservationists. The resilience of coral reefs is being tested like never before, and we must prioritise strategies that enhance their ability to withstand climate change.
The implications of this research extend beyond the ecology and conservation. Coral reefs provide essential services to human communities, including fisheries, tourism and coastal protection. As the Great Barrier Reef faces increasing threats from climate change, the study calls for a collaborative approach to conservation that involves local communities, scientists and policymakers.
Dr Shawna Foo, a Sydney Horizon Fellow and co-author of the study, said: “Seeing the impacts on a reef that has largely avoided mass bleaching until now is devastating. The high rates of mortality and disease, particularly in such a remote and pristine area, highlight the severity of the situation. Although the reef‘s highly protected status may not have prevented the impacts of the heatwave, its role in facilitating recovery will be crucial to observe.”
ABOVE L-R: Professor Ana Vila Concejo on the Great Barrier Reef, University of Sydney Horizon Fellow Dr Shawna Foo, and Professor Maria Byrne on the Great Barrier Reef.
But this isn’t a story of giving up – this is a rallying cry.
Yes, the situation is dire, but it’s also a reminder of why we can’t stop fighting for our reefs and the communities (both human and non-human) that depend on them. The reef has shown resilience before, and with our help, it can again. You can help by supporting groups like Reef Restoration Foundation, Great Barrier Reef Foundation, Tangaroa Blue Foundation, or Australian Marine Conservation Society. And as always, keep advocating for strong climate policies.
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Look, I don’t want to make anyone panic but IT’S DECEMBER!!! If you’re planning to give homemade gifts, you’re going to have to act fast. …
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🌻 The Paddington 🌻
This is a much-loved staple, created for Issue 50 in 2021. We love seeing the #PeppermintPaddingtonTop continually popping up in our feeds!
How stunning is our model Elon MelaninGoddessEfon – she told us it was one of the first times she had been asked to come to a shoot with her natural hair. 🌻
We worked with South African patternmaker Sarah Steenkamp of @FrenchNavyNow_ to create this wardrobe essential – the perfect puff-sleeve blouse. Raglan sleeves make it the ultimate beginner sew, plus the gorgeous back buttons let you add your own personal twist.
Pattern via the link in bio! 🪡
Photos: @KelleySheenan
Fabric: @Spoonflower
Model: MelaninGoddessEfon
“In the 1940’s, Norwegians made and wore red pointed hats with a tassel as a form of visual protest against Nazi occupation of their country. Within two years, the Nazis made these protest hats illegal and punishable by law to wear, make, or distribute. As purveyors of traditional craft, we felt it appropriate to revisit this design.”
Crafters have often been at the heart of many protest movements, often serving as a powerful means of political expression. @NeedleAndSkein, a yarn store in Minnesota, are helping to mobilise the craftivists of the world with a ‘Melt The Ice’ knitting pattern created by @Yarn_Cult (with a crochet pattern too), as a way of peaceful protest.
The proceeds from the $5 pattern will go to local immigrant aid organisations – or you can donate without buying the pattern.
Raise those needles, folks – art and craft can change the world. 🧶
Link in bio for the pattern.
Images: @Gather_Fiber @NeedleAndSkein @a2ina2 @KyraGiggles Sandi.204 @WhatTracyMakes AllieKnitsAway Auntabwi2
#MeltTheIce #Craftivism #Knitting #CraftForChange
TWO WEEKS TO GO! 🤩
"The most important shift is moving from volume-led buying to value-led curation – choosing fewer, better products with strong ethics, considered production and meaningful stories. Retailers have real influence here: what you buy signals what you stand for. At Life Instyle, this means using the event to discover and invest in small-scale, planet-considerate brands that align with your values and your customer’s conscience. Consumers don’t need more things; they need better things, and retailers play a key role in selecting, contextualising, and championing why those products matter."
Only two more weeks until @Life_Instyle – Australia`s leading boutique retail trade show. If you own a store, don`t miss this event! Connect with designers, source exquisite – and mindful – products, and see firsthand why this is Australia’s go-to trade show for creatives and retailers alike. And it`s free! ✨️
Life Instyle – Sydney/Eora Country
14-17 February 2026
ICC, Darling Harbour
Photos: @Samsette
#LifeInstyle #SustainableShopping #SustainableShop #RetailTradeEvent
Calling all sewists! 📞
Have you made the Peppermint Waratah Wrap Dress yet? Call *1800 I NEED THIS NOW to get making!
This gorgeous green number was modelled (and made) by the fabulous Lisa of @Tricky.Pockets 🙌🏼
If you need a nudge, @ePrintOnline are offering Peppermint sewists a huge 🌟 30% off ALL A0 printing 🌟 when you purchase the Special Release Waratah Wrap Dress pattern – how generous is that?!
Head to the link in bio now 📞
*Not a real number in case that wasn`t clear 😂
#PeppermintWaratahWrapDress #PeppermintPatterns #SewingPattern #WrapDress #WrapDressPattern
8 Things to Know About January 26 - from @ClothingTheGaps:
Before you celebrate, take the time to learn the truth. January 26 is not a day of unity it’s a Day of Mourning and Survival for Aboriginal and Torres Strait Islander peoples.
It marks the beginning of invasion, dispossession, and ongoing colonial violence. It’s time for truth-telling, not whitewashed history.
Stand in solidarity. Learn. Reflect. Act.
✊🏽 Blog written by Yorta Yorta woman Taneshia Atkinson.
🔗 Link in bio of @ClothingTheGaps to read the full blog
#ChangeTheDate #InvasionDay #SurvivalDay #AlwaysWasAlwaysWillBe #ClothingTheGaps
As the world careens towards AI seeping into our feeds, finds and even friend-zones, it`s becoming increasingly hard to ignore.
We just wanted to say that here at Peppermint, we are choosing to not print or publish AI-generated art, photos, words, videos or content.
Merriam-Webster’s human editors chose `slop` as the 2025 Word of the Year – they define it as “digital content of low quality that is produced usually in quantity by means of artificial intelligence.” The problem is, as AI increases in quality, it`s becoming more and more difficult to ascertain what`s real and what`s not.
Let`s be clear here, AI absolutely has its place in science, in climate modelling, in medical breakthroughs, in many places... but not in replacing the work of artists, writers and creatives.
Can we guarantee that everything we publish is AI-free? Honestly, not really. We know we are not using it to create content, but we are also relying on the artists, makers and contributors we work with, as well as our advertisers, to supply imagery, artwork or words created by humans. AI features are also creeping into programs and apps too, making it difficult to navigate. But we will do our best to avoid it and make a stand for the artists and creatives who have had their work stolen and used to train AI machines, and those who are now losing work as they are replaced by this energy-sapping, environment-destroying magic wand.
Could using it help our productivity and bottom line? Sure. And as a small business in a difficult landscape, that`s a hard one to turn down. We know other publishers who use AI to write stories, create recipes, produce photo shoots... but this one is important to us.
`Touch grass` was also a Merriam-Webster Word of the Year. We`ll happily stick with that as a theme, thanks very much. 🌿
