July 23, 2020.
April 14, 2020. Life
Permafrost is ground that remains at or below 0 °C (32 °F), the freezing point of water, for at least two years. Permafrost accumulates over time, ranging in depth from 4.4 meters (14.6 feet) within one year to 626 meters (2,055 feet) over a quarter of a million years. During this time organic matter gets...