11/13/2022 0 Comments Heat killed marine wildlife masse![]() You can sign up to receive it directly here. Mass bleaching in 2016-2017 affected up to half of the coral in the 2,300-kilometer reef.Įvery evening, DW's editors send out a selection of the day's hard news and quality feature journalism. In the past 20 years, the reef has suffered from four mass bleaching events due to global warming. However, the reef's Marine Park Authority predicts that if current greenhouse gas emissions are not curbed, the coral is projected to bleach twice a decade from 2035 and annually after 2044. Like in ‘Postapocalyptic Movies’: Heat Wave Killed Marine Wildlife en Masse An early estimate points to a huge die-off along the Pacific Coast, and scientists say rivers farther inland are warming. The reef covers an area larger than Italy and is one of earth's most biodiverse ecosystems. The Great Barrier Reef, which is listed as a UNESCO World Heritage Site, is the world's biggest coral system. Read more: Great Barrier Reef: 'Last-chance' tourists flock to wonder as coral disappears The size of the Great Barrier Reef covers an area larger than Italy and is one of earth's most bio-diverse ecosystems Image: picture-alliance/Imaginechina "The severity of these heat wave events is beyond the bleaching process it's actually a point where the coral animal itself is dying," said Tracy Ainsworth, a co-author of the study from the University of New South Wales. The degradation also puts at risk many other sea creatures that live in the sea coral. The researchers also have evidence that the skeleton of corals, also an animal species, begins to decay within weeks of a marine heat wave. If sea temperatures decrease, bleached corals can be revived. Repeated "bleaching events" kill the colorful algae covering and nourishing the coral, thereby destroying the coral in a matter of months or years. The scientists concluded that severe and frequent marine heat waves can destroy corals through a process called "bleaching." Researchers from Australia, the UK and the US studied the impact of global warming in Australia's Great Barrier Reef and published their findings on Friday in the Current Biology journal. Marine heat waves are killing coral reefs far quicker than scientists previously believed, a new study has found. ![]()
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