Slow loss of the Great Barrier Reef

Creating “bright clouds” and allowing corals to better withstand heat are two techniques that could slow the disappearance of the Great Barrier due to global warming by twenty years, according to Australian scientists.

Slow down coral decay by adopting large programs

The site in Northeast Australia, inscribed on the UNESCO World Heritage List in 1981, risks “they decompose rapidly“in the next fifty years due to climate change, according to a study published in the journal The open science of the Royal Society. “Coral reefs are among the most climate-vulnerable ecosystems“said AFP lead author of this study, Scott Condie.”Modeled projections suggest that the proportion of coral within the Great Barrier Reef could fall below 10% within 20 yearsHowever, it is possible to slow that decline by adopting major programs globally, said Condie, a senior researcher at the Australian National Science Agency (CSIRO). The Great Barrier Reef has already experienced three bleaching episodes in five years, while half have disappeared since 1995. due to the rise in water temperature.

Create “bright clouds”

Condie and other authors of this article modeled the impact that the “bright cloud” fabrication technique, first tested last year above the Great Barrier, could have. It consists of projecting salt crystals into clouds to make them brighter and thus cool the water around the reef. They also modeled measures to control a coral-eating predator that reproduces by bleaching that forces large fish to migrate further out of the area. “The results suggest that combining these measures could delay the decline of the Great Barrier Reef for two or more decades.“Mr Condie said.urgently“act,” the scientist said, acknowledging that it requires work.much larger than what has been achieved so far as well as huge investmentsThis modeling assumes that global temperatures will not rise above 1.8 degrees by 2100, forcing governments to meet commitments made by the Paris Climate Agreement.

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