September 4. Paleontologists have found that global warming has a positive effect on species diversity. Article (at the time of this writing, it has not been posted on the Internet) appeared in the scientific journal Proceedings of the National Academy of Sciences, and its
In the study, researchers analyzed data on the diversity of the biosphere over the past 540 million years. As a result, it was found that the temperature peaks coincide with an increase in biodiversity. The researchers say that their results apply to the present time it is impossible — the fact that the key factor is the rate of climate change. It is believed that they are now too fast for organisms can adapt to them.
It is noteworthy that the new results are directly opposed to the results of a similar study in 2008. According to the researchers, the matter in difference methods. In previous work, scientists analyzed the information about all the living creatures that were known to them. With this as the starting point and end point in the history of a species undertook the oldest and most famous fossils of late.
According to researchers, this approach ignores the fact that, due to geological features, one period is better understood in comparison with others. To get rid of the distortions that this fact is brought into the analysis, the researchers chose only periods that have been well studied. As a consequence, the result has changed almost the opposite.