The world is in the ‘new reality’ threshold because of climate changeas the coral reefs in the oceans, it is almost certain that they have surpassed a devastating turning point, from which there is no return, warned authors of scientific reference study, which is being released today.

International team of 160 scientists are studying the planet’s health status and potential turning elements that could change ecosystems definitively and irrevocably. If they are overcome, there is a domino effect.

As the Increase in temperature It has reached 1.4 ° C in compared to the pre -industrial era, these reefs’they have an unprecedented disintegrationaffecting the lives of millions of people who depend on them “and the survival of one million marine species, the authors of the scientific study conclude.

“Unfortunately, we are almost confident that we have surpassed one of the turning points for the tropical coral reefs of the hot water,” Tim Lenton, a researcher specializing in the environment at the University of Ephester (Britain), told the French Agency.

From their previous published study in 2023 they found mortality of the “unprecedented” coral. These reefs are aware of the current mass whitening, their decomposition, which lasts two years.

‘Danger Zone’

Corals – anti -corrosion shields and biodiversity tanks, which also store carbon dioxide – bleached because of the heatthey are extremely vulnerable to rising temperatures. In the warmest oceans, they eliminate microorganisms that give them their vibrant money characteristics and provide them with food, ending up starvation.

Dead corals are but skeletons, without living tissues, gradually covered by algae and colonized more organisms, until they begin to wear out and cut.

Researchers estimate that If the temperature rises 1.5 ° Cs compared to pre -industrial era, the overwhelming majority of corals will be doomed. This limit will be exceeded in a few years if there is no drastic reduction in gas emissions that cause the greenhouse effect.

This threshold for the increase in Earth’s temperature, the most ambitious objective of the Paris Agreement (2015) is “on the brink of collapse”, UN Secretary -General Antonio Guterres recently warned.

Its overcoming would lead “the world to a danger zone – even greater risk,” Tim Lenton said.

The time of publication of the study was not randomly selected. Negotiators from all over the world meet in Brasilia to prepare COP30 today and tomorrow, a month before the World Climate Council in Belem.

Solar and wind energy

For two years, the vital signs of the Earth are getting worse. Other turning points can be overcome soon, with the irrevocable melting of the most superficial ice on the poles, the collapse of critical oceanic currents, as well as the further destruction of the Amazon forest, where the COP30 will take place.

“We are approaching multiple planetary turning points that can transform our world, with catastrophic consequences for people and nature,” Lenton warns.

“This requires immediate and unprecedented measures from leaders at COP30 and politicians around the world,” he adds.

Scientists, however, also record some progress in the last two years, those that characterize positive turning points, which may have chains of positive climate effects.

Some areas have exceeded the points that make their growth irrevocable. Most solar and wind energy is cheaper internationally and the adoption of electric vehicles, energy storage batteries and heat pumps is increased in certain markets.

There are also technologies that have not reached this promising stage (hydrogen, “green” ammonia).