JOSH HANER/THE NEW YORK TIMES/REDUX/EYEVINE
Climate science: Vast costs of Arctic change : Nature : Nature Publishing Group: "We calculate that the costs of a melting Arctic will be huge, because the region is pivotal to the functioning of Earth systems such as oceans and the climate. The release of methane from thawing permafrost beneath the East Siberian Sea, off northern Russia, alone comes with an average global price tag of $60 trillion in the absence of mitigating action — a figure comparable to the size of the world economy in 2012 (about $70 trillion). The total cost of Arctic change will be much higher."
Bubbles of methane emerge from sediments below a frozen Alaskan lake.
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