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THE GREAT BARRIER REEF could be hit with repeat coral bleaching events every two years by 2034 under current greenhouse gas pollution rates, the Climate Council’s new report shows. A NEW report by the International Union for Conservation of Nature has flagged the Great Barrier Reef as one of 83 World Heritage sites under threat from climate change. Climate change poses the greatest threat to the Great Barrier Reef and coral reefs globally. The Great Barrier Reef is experiencing its most widespread coral bleaching event, according to scientists who say record warm temperatures and warming oceans are … (CNN) Marine heat waves caused by global warming are killing off the corals of Australia's Great Barrier Reef, the world's largest reef system, according to … But experts said the action may not be enough as Australia is one of the highest coal exporters, the Post noted. The world's largest coral reef is in serious danger. The researchers discovered that "the abundance of large colonies on the crest" fell by up to 98 percent, while there was a minor 25-percent increase in coral on the southern slope. The Great Barrier Reef off the coast of Australia is home to more than 400 kinds of coral. Great Barrier Reef was world heritage listed in 1981 by Unesco as the most extensive and spectacular coral reef ecosystem on the planet Australia's Great Barrier Reef has lost more than half its coral in the last three decades and scientists fear the loss caused by frequent bleaching will compromise its ability to recover. A recent study found that ocean warming has killed half of the coral in Australia's Great Barrier Reef. According to the Australian Institute of Marine Science, the most recent (2017-18) survey of Moore reef showed 0-5% coral cover, compared with about 20% in the 1980’s. The Great Barrier Reef is the world's largest reef. Tropical sea surface temperatures have risen by 0.4–0.5 °C since the late 19th century, with rapid, human-induced climate change the greatest overall threat to the long-term future of the Great Barrier Reef. The conservation status for Australia's Great Barrier Reef has declined from "significant concern" to "critical" due to increasing impacts associated with climate change, a new report has found. ... or have to keep coring the massive old Porites corals from which an overall coral growth rate for the Great Barrier Reef used to be calculated. It is home to 400 types of coral, 1,500 species of fish and 4,000 different mollusks. The Great Barrier Reef Marine Park Authority is the key management agency for the Great Barrier Reef and works with government, industries and communities to build reef resilience. The unusually warm ocean temperatures affected coral of all sizes, almost all species and in shallow and deeper weather, Terry Hughes, a co-author, told The Washington Post. Climate change poses the greatest threat to the Great Barrier Reef and coral reefs globally. It has lost half of its coral to climate change since 1995, with its status now listed as "critical" -- the most urgent designated status in the classification system of … The Great Barrier Reef is the world's largest reef systems, stretching along the East coast of Australia from the northern tip down to the town of Bundaberg, is composed of roughly 2,900 individual reefs and 940 islands and cays that stretch for 2,300 kilometres (1,616 mi) and cover an area of approximately 344,400 square kilometres (133,000 sq mi). Global warming poses two major threats to the reef: coral bleaching, caused by rising ocean temperatures, and ocean acidification, which—if it crosses a critical level—deprives corals of the ingredients they need to build shells and skeletons. 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