A planet in danger of mass extinction in the oceans

Back then it was a meteorite and volcanoes destroyed life on Earth, but now it’s because of humans.

If there is no drastic and rapid response to climate change, greenhouse gases that heat the oceans and consume their oxygen, along with “habitats” and coastal pollution will destroy marine life.

The article, signed by scientists from the University of Washington and Princeton, recalls that high anthropogenic emissions of greenhouse gases are radically modifying the Earth’s climate system and threatening many species.

The study warns that it is difficult to observe the impact of climate on biodiversity, especially marine life, when considering the fossil record that explains previous episodes of mass extinction caused by environmental changes drastic.The future of marine life as we know it, under widespread climate change, is uncertain“.

Using a comprehensive ecological model that measures an organism’s physiological limits based on estimates of ocean temperature and oxygen, study authors Justin Ben and Curtis Deutsch have estimated the extinction risk of marine species under different warming conditions.

The result is, If global warming continues unabated, by the end of the Permian Period, known as the Great Mortality of 250 million years ago, the planet’s marine ecosystems will have suffered massive destruction in scale. and in intensity. Two-thirds of marine animals.

As a result of the study, tropical oceans are at risk of losing more species due to climate change, although many are migrating to higher latitudes and have more favorable survival conditions.

Conversely, polar species should disappear because their “habitats” will disappear completely.


One more warning

In another article published with the cited article, Malin Pinsky and Alexa Friedston, scientists at Rutgers University in New Jersey, “Climate change is driving organisms from the ends of the earth“.

But they pointed out that reducing the risk of greenhouse gas emissions could reduce the risk of extinction by up to 70%.

In this way, they reinforced that preventing widespread biodiversity loss and the sixth mass extinction was now a “global priority”.

Whether humanity faces the worst or the worst situation depends not only on climate change, but also on community decisions regarding the destruction of “habitats”, overfishing and the pollution of beaches.“, he warned.

In this way, Pinsky and Friedston argued that “with a concerted focus on countering multiple threats, marine life has the best chance of survival through this century and beyond”.


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