Australia’s Nice Barrier Reef is struggling widespread and extreme coral bleaching as a consequence of excessive ocean temperatures two years after a mass bleaching occasion, a authorities company mentioned on Friday.

The report by the Nice Barrier Reef Marine Authority, which manages the world’s largest coral reef ecosystem, comes three days earlier than a United Nations delegation is because of assess whether or not the reef’s World Heritage itemizing ought to be downgraded as a result of ravages of local weather change.

“Climate patterns over the following few weeks will likely be important in figuring out the general extent and severity of coral bleaching throughout the Marine Park,” the authority mentioned.

“Bleaching has been detected throughout the Marine Park — it’s widespread however variable, throughout a number of areas, ranging in affect from minor to extreme,” the authority added.

The reef has suffered considerably from coral bleaching brought on by unusually heat ocean temperatures in 2016, 2017 and 2020. The earlier bleaching broken two-thirds of the coral.

The environmental group Greenpeace mentioned the extreme and widespread coral bleaching suffered throughout a La Niña climate sample that’s related to cooler Pacific Ocean temperatures was proof of the Australian authorities’s failure to guard the coral from the impacts of local weather change.

“It is a certain signal that local weather change brought on by burning coal, oil and gasoline is threatening the very existence of our reef,” Greenpeace Australia Pacific Local weather Impacts Campaigner Martin Zavan mentioned in an announcement.

In July final 12 months, Australia garnered sufficient worldwide assist to defer an try by UNESCO, the United Nations’ cultural group, to downgrade the reef’s World Heritage standing to “in peril” due to injury brought on by local weather change.

However the query will likely be again on the World Heritage Committee’s agenda at its subsequent annual assembly in June.

A U.N. delegation will examine the reef’s well being subsequent week.