Why is permafrost thawing due to warming dangerous?

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The head of the Hydrology and Climatology Laboratory of the Geography Institute of the Russian Academy of Sciences announced that the thaw and other consequences of global warming will lead to a gradual rise in the global ocean level, which threatens in the long run to flood coastal areas.

He told Sputnik, "The melting of permafrost in some circumstances will emit carbon compounds in the atmosphere, which enhances the effect of global warming, and contributes to a greater heating of the atmosphere. And the fires caused by drought, among other things, accompanied by the spread of soot particles away From ignition centers, including falling into snow and glaciers. "

"This, in turn, reduces the reflectivity of snow and ice and speeds up its heating and melting," he added.

He pointed out that "the accelerated fusion of ice and accumulated ice leads to an increase in water in the oceans, and this leads to a gradual rise - at a rate of about 3 millimeters annually - to the rise of the global ocean level and threatens to flood and even flood many coastal areas."

He stated that due to the characteristics of the air cycle, regions near the Earth's poles and high mountainous regions suffer from a stronger thermal effect than other regions.

The scientist stressed that the consequences of warming cannot be ignored. It is necessary to study processes in the atmosphere and the hydrosphere, especially in the polar regions, including in the permafrost region.