A recent study has shown that the increasing increase in greenhouse gas emissions could cause a mass extinction of life in the seas equal to that which marked the last day of the dinosaurs on Earth with the only difference that the latter was not caused. by human being
The risks of the consequences of the climate crisis are more worrying than ever, but despite the latest IPCC report and future climate scenarios elaborated by the experts of the research centers, action by world leaders unfortunately remains on paper, as well as their signatures in pledging to respect the objectives of the Glasgow Summit.
A recent study conducted by the University of Princenton and published in the journal Science wanted to put the accent on greenhouse gas emissions, demonstrating what would await us, or perhaps it is better to say will wait, around 2100 when the climate will now be even more uncontrollable than what is already feared.
The team of researchers of the aforementioned university center has created a model of climate change centered on the Oceans such as to generate a mass extinction of marine life with effects similar to those in the Paleozoic, and more precisely in the Permian period, they caused the extinction of 81% of marine creatures.
The possible scenario presented is actually a very concrete hypothesis that would occur due to global warming and the consequent loss of oxygen in the Oceans that would lead to decline of entire populations of different marine species, of which 45% already classified in the IUCN list as at risk of extinction.
In fact, if the tropical regions were to be able to partially save themselves, managing to tolerate or in any case to cope with the rising temperatures of the waters, the polar marine ecosystems would be completely affected by the lack of oxygen in the seas. Finding nowhere else to live, their marine species would inevitably perish.
To confirm the theory of the experts there is a fact that is the distribution of marine biodiversity in the globe that abounds in the Tropics, but decreases sharply as we approach the equator precisely because here the oxygen content in the water is too low. .
Experts point out, however, that extreme warming can be slowed down if it were possible to put the planet's well-being ahead of profits.
On the bright side, the future isn't written in stone. The extent of the extinction we found strongly depends on the amount of carbon dioxide we emit going forward. There is still enough time to change the trajectory of CO2 emissions and prevent the extent of warming that would cause this mass extinction "
said researcher Justin Penn, first author of the study that already in 2018 he had raised the alarm, however, remained unheard.
Fonte: Science
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