The Permafrost Timebomb?
June 13, 2013 | NASA
Over hundreds of thousands of years the Arctic permafrost has accumulated an enormous store of organic carbon. As it thaws from climate change the plant debris will decay and carbon dioxide and methane will be release into the atmosphere. Permafrost contains at least 4x more carbon than fossil fuel burning has produced since 1850.
March 27, 2014 | USGS
"In the next 50 years, as arctic systems warm, the release of carbon and nitrogen in permafrost could greatly exacerbate the warming phenomenon. Thawing is impacting ecosystems on land and offshore." Quoted from the USGS feature.
Topography Below Antarctic Ice
June 10, 2013 | British Antarctic Survey
"Scientists at the British Antarctic Survey have been working with a host of international collaborators to present the most detailed map yet of Antarctica’s landmass. [...] The map allows scientists to analyse, in much greater detail, the bed below the Antarctic ice sheet." Quoted from the British Antarctic Survey press release.