Permafrost thaw beneath Arctic lakes poses surprise pollution threat

Thermokarst lakes, formed from thawing permafrost, in Alaska The Asahi Shimbun via Getty Images As the Arctic gets warmer, large quantities of greenhouse gas could be released from the sediment at … [+329 chars]

Permafrost thaw beneath Arctic lakes poses surprise pollution threat

Permafrost thaw beneath Arctic lakes poses surprise pollution threat

Permafrost thaw beneath Arctic lakes poses surprise pollution threat

Permafrost thaw beneath Arctic lakes poses surprise pollution threat

Permafrost thaw beneath Arctic lakes poses surprise pollution threat