Caves point to thawing of Siberia: Thaw in Siberia's permafrost may accelerate global warming

Evidence from Siberian caves suggests that a global temperature rise of 1.5 degrees Celsius could see permanently frozen ground thaw over a large area of Siberia, threatening release of carbon from soils, and damage to natural and human environments.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/i...