Efforts to save the reef aren’t tackling the main cause: climate change. What we need from our next federal government is strong leadership to avert the climate crisis.
Many places have banned sunscreens with certain chemicals in an attempt to help protect coral reefs.
Westend61 via Getty Images
Researchers have long suspected that an ingredient in sunscreen called oxybenzone was harming corals, but no one knew how. A new study shows how corals turn oxybenzone into a sunlight-activated toxin.
Bleached coral beside the darker, healthier coral. Photo taken in February.
Nathan Cook
Coral reefs that suffer widespread bleaching can still recover if conditions improve, but it’s estimated to take up to 12 years. And that’s if no more bleaching events occur.
Laboratory studies suggest sunscreen chemicals are dangerous to coral reefs. But in real world conditions, that’s not true. Bleaching must have another cause.
Paul Hardisty, Australian Institute of Marine Science; David Mead, Australian Institute of Marine Science, and Rob Vertessy, The University of Melbourne
Coral in the Great Barrier Reef is once again bleaching, with water temperatures up to 3℃ higher than normal in some places.
New research shows just 2% of the Great Barrier Reef remains untouched by bleaching since 1998. Its future survival depends on how much higher we allow global temperatures to rise.
Academic research can shed light on crucial questions about what life on Earth will be like under the most plausible emissions scenarios. And a warning: the answers are confronting.
Friday’s decision from the World Heritage Committee doesn’t change the irrefutable evidence that dangerous impacts are occurring on the Great Barrier Reef.
Just because coral is dying, doesn’t mean marine life in reefs will end. New research found dead coral hosted 100 times more microscopic invertebrates than healthy coral.
Researchers found 16% of coral species have not been seen for many years. This finding is alarming, because local extinctions suggest global extinctions may be looming.
The development is significant for several reasons – not least that Australia’s progress under the Paris Agreement is being linked to its stewardship of the reef.
This is not an imaginary future dystopia. It’s a scientific projection of Australia under 3℃ of global warming – a future we must both strenuously try to avoid, but also prepare for.
New research shows nature started its long road to recovery in 2020 – especially in NSW and Victoria. But overall conditions across large swathes of the country remain poor.
Dimitri Perrin, Queensland University of Technology; Jacob Bradford, Queensland University of Technology; Line K Bay, Australian Institute of Marine Science, and Phillip Cleves, Carnegie Institution for Science
New research involving CRISPR technology has furthered our understanding of corals’ gene functions. Specifically, it has revealed a mechanism underpinning how corals withstand heat stress.