On June 20th a town North of the Arctic Circle recorded a high temperature of 100°F (38°C). This is a record high for anywhere in the Arctic Circle. Loss of ice, which reflects thermal radiation back to space, may be causing a positive warming feedback; the more ice is lost the hotter it gets resulting in even more ice loss etc.
All of Siberia is suffering from a heat wave, with temperature as much as 10°C above average in some places during the month of May. With these high temperatures snow melts faster than it normally does, exposing the permafrost to more sunlight over time and melting it more thoroughly. That leads to the release of methane, a greenhouse gas, that has been stored in the permafrost.
https://en.wikipedia.org/wiki/Arctic_methane_emissions
All of Siberia is suffering from a heat wave, with temperature as much as 10°C above average in some places during the month of May. With these high temperatures snow melts faster than it normally does, exposing the permafrost to more sunlight over time and melting it more thoroughly. That leads to the release of methane, a greenhouse gas, that has been stored in the permafrost.
https://en.wikipedia.org/wiki/Arctic_methane_emissions
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