Climate New Network: Climate scientists have coolly established the mechanism by which a warming Arctic will accelerate the warming of the whole world. Its simple: as the permafrost warms and dries, it will release ever greater quantities of carbon dioxide from the Arctic soils.
And those bits of tundra that warm, thaw and become increasingly soggy will release ever greater quantities of methane, a greenhouse gas (GHG) more short-lived but also a far more potent heat trap than CO2.
The impact of the carbon dioxide,...