- New research indicates that global warming threatens marine organisms with extinction
- Polar organisms, which cannot escape into cooler waters, are most at risk
- Further development of the situation of aquatic animals, according to scientists, depends on what we do with greenhouse gases
- There is much evidence that even if warming is stopped at 2 degrees C relative to the industrial age, 4 percent. marine species will become extinct
- More such stories can be found on the main page of Onet.pl
Scholars say that now the riches of the seas and oceans of the earth it is certainly smaller than in the last tens of millions of years. If global warming does not slow down and continue to have a significant impact on marine ecosystems, animal numbers will continue to decline. You can already observe that the seas and oceans are “overheated” and have less and less oxygen for life. From the 60s of the twentieth century The volume of completely oxygen-depleted seawater has quadrupled. The reproduction and life of marine animals in such conditions becomes not only very difficult, but even impossible.
The rest of the text below the video.
A repeat of the “great extinction” awaits us
According to researchers, the rate of water heating and the decrease in oxygen content it’s similar to what we covered 250 million years ago. Then there was the “great extinction” that caused no less than 96 percent animals sea life on Earth is extinct. According to the experts in the article, we’re on track to achieve a repeat of that period, but that doesn’t mean we don’t need to do anything further.
† said Justin Penn, a climatologist at Princeton University who co-authored the new study.
Pacific Ocean in the Palau area
Unfortunately, there is much evidence that whatever we do, it is too late for some organisms. Analyzes show that even If global warming could be kept at 2 degrees Celsius compared to the industrial revolution, of the 2 million species of marine animals, 4 percent. will perish. If the temperature rise reaches 4 degrees Celsius, the extinction will be much greater and faster.
They run the greatest risk of disappearing from the face of the earth animals that live in the polar regions. Justin Penn says it’s all because of… no possibility to migrate to a cooler climate, because there will simply not be such a thing. Tropical organisms may move to cooler places in the future. Arctic animals cannot do this.
Arctic Ocean, Spitsbergen
“We are already losing untold biodiversity”
In addition to warming, which is warming the oceans and depriving them of oxygen, other problems are on the rise, including massive water pollution and overfishing. because of them another 10-15 percent of organisms are threatened with extinction.
A polluted beach on Komodo Island, Indonesia
A study published in Science was commented on by John Bruno, a marine ecologist at the University of North Carolina, in an interview with The Guardian. According to him, the latest study differs from the previous one, pointing to more species migration than extinction. The specialist stated that there is no need to look too far ahead, as the seas and oceans are already heavily affected.
Source: The Guard (science)