Date: 4 months ago   Category: Politic

Scales of climatic disaster are described


Scientists of the University of Alberta (Canada) have found out that the amount of the carbon dioxide emitted in the atmosphere when thawing permafrost is underestimated because of aeration of the breeds exempted from ice with participation of sulfuric acid. It is reported in the press release on Phys.org. Researchers have come to a conclusion that quickly thawing of a kriolitozona on the North-West Territories in Canada strengthens the aeration processes leading to considerable emissions of carbon dioxide. It happens because of emergence of thermokarsts — sites of a vytaivaniye of underground ice. The sulphidic minerals exempted from the last are exposed to oxidation, and sulfuric acid is formed. She, in turn, destroys carbonate rocks with allocation of molecules of carbon dioxide. According to experts, thermokarst aeration in the future can break a global cycle of carbon in fresh water of the Arctic. Thus, thawing of permafrost can promote bigger release of greenhouse gases, than was considered earlier. However influence of this mechanism on climate change remains insufficiently studied. Earlier international group of scientists from Austria, France, Great Britain, Germany and Switzerland has come to a conclusion that thawing of permafrost and emissions of carbon connected with it have reduced the issue budget of carbon dioxide almost to zero. As a result excess of admissible volumes of emissions of greenhouse gases which can lead to climatic disaster is inevitable. It is more than important news in Film of Day Telegram-channel. Subscribe!

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