Great Barrier Reef's first mass bleaching during La Niña season halts coral recovery
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The Grand Barrier Reef's latest report card shows that the mass bleach, which should be a cool year, stops coral healing in two -thirds of the reef. Lock Points La Niña The first occurred under the air pattern of 2022 was bleaching 2022 bleaching was first to occur under La niña air pattern, 30 percent of the reef coral in El Niño season of 2016 30 percent estimated coral in El Niño season of 2016, in beginning this month, UNESCO said that UNESCO RESIFENCE does not belong to "Dangerous" list Reef's mass bleaching event in 2022 came fourth in seven years, the 2022 coral cover report of the Australian Institute of Marine Sciences. But it was also the first to occur under a La Niña air pattern. La niña is the time when ocean temperatures are typically cooler. The findings gave a great alarm among climate observers. 2022 bleaching was much less fatal than the consecutive events of 2016 and 2017, but it caused enough damage to meet the gains. The reef was left with a slightly less coral cover than a year ago. "This caused sufficient mortality to pause the last regional gains on the hard coral cover," research director David Wachenfeld said on Wednesday.Said. "During the bleaching event, heat stress had fatal effects, including decreases in coral growth and reproduction." Leading long -term reef monitoring program, Mike Emslie said that most of the reefs in system have seen little changes. It becomes difficult to find a healthy coral in the big barrier reef. Mercan -eating equestrian founding starfish and cyclone Tiffany damage, such as forces also balance coral growth. "This pause shows that even if less severe, less severe with low mortality, it is still enough to put brakes for this coral healing."Said. "This means that the reef is still at the risk of falling from more often discomfort." Reef scientists are worried about what could happen this summer and another El Niño air system from the expected arrival. The air pattern directs high ocean temperatures and dry conditions. Dr.Emslie says that the Australians should only send their minds back to 2016 to understand what al -Niño can do for the reef. 30 percent of the reef corals in a nine -month sea heat wave in 2016. Dr."To give Ref chance survive to the future, it requires a decrease in global emissions stabilize temperatures, and requires best practical management of local pressures such as Donns-of starfish."Said. UNESCO announced that the major barrier reef does not yet belong to the "Hazard" list this month. The UN scientific consultants demanded an emergency action expected to accept the World Heritage Committee in September. Meanwhile, Australian Academy of Sciences warned the potentially irreversible reef effects until 2050, even if emissions were stable last week.