Department research in Siberian caves indicates history and future risk of Siberian thawing
Caves point to thawing of Siberia
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.
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You can read the abstract of the paper at: http://www.sciencemag.org/content/early/2013/02/20/science.1228729.abstract
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