One quarter of the Northern hemisphere is underlain by permanently frozen ground, referred to as permafrost.
permafrost
Posted inMicrobiology & Virology
Permafrost Thaw Could Release Unknown Bacteria And Viruses
When considering the implications of thawing permafrost, our initial worries are likely to turn to the major issue of methane being released into the atmosphere and exacerbating global warming or […]
Posted inArctic / Antarctic / Alpine, Astrobiology (general), Mars
Bacterium from Canadian High Arctic and life on Mars
The temperature in the permafrost on Ellesmere Island in the Canadian high Arctic is nearly as cold as that of the surface of Mars. So the recent discovery by a […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Away Teams & Field Reports, Biosignatures & Paleobiology, Cryobiology, Dale Andersen's Field Reports, Icy Worlds, Status Report
McGill High Arctic Research Station Photo Report – Dale Andersen: 8 April 2009 Colour Peak Springs
There are several regions on Earth where mean annual temperatures are well below freezing and yet liquid water persists. Such polar regions provide excellent analogs to study the hydrological cycle […]