Scientists: Global warming accelerates the water cycle

Climate warming accelerates the global water cycle on the planet, making the arid regions even more dry and wet leads to flooding, and the trend continues to grow, reported in an article in the journal Proceedings of the National Academy of Sciences.

According to the findings of scientists made on the basis of 13 years of satellite observations, the warming of the Earth's climate leads to increased evaporation of water from the oceans, which in turn causes more rainfall than before, which in the beds of rivers returning to the ocean. The volume of water flowing in this cycle, increasing annually by 1.5%.

"The magnitude of 1.5% may not seem significant, but on the scale of decades, it's really a lot," — said the professor, University of California, Irvine, USA, Jay Famiglietti (Jay Famiglietti), a leading researcher in the team of co-authors, as quoted by the press service of the University.

Between 1994 and 2006, the volume of fresh water entering the oceans every year, increased by 18%.

"In general, for the people, the more fresh water — the better, but the problem is that not everyone gets more rainfall, and those who get on in this case does not need. What we are seeing, is fully consistent with the forecast by the Intergovernmental Panel on Climate Change — increased precipitation in the tropics and the tightening of storms in the Arctic region, while the semi-arid regions, where there are hundreds of millions of people are getting drier, "- he added.

Simply put, it is the result of the acceleration of the global water cycle. Track this trend allowed the scientists to long-term space satellite observations of the level of water in the seas, rainfall and evaporation.

A study conducted by a team of Famiglietti, is the first of its kind, since up to now most of these works were based on simulations and calculations.

The authors of the publication noted that, despite the clear patterns identified, their use is still too early to produce long-term prognosis. A period of 13 years is too short and some of the changes in nature during this time may not reflect the general trend, so that the work of monitoring the water cycle should continue.

Source: RIA Novosti

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