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Uncertainties are a fact of life for those who model climate change and the factors that amplify or moderate its effects. One important dynamic in climate change studies is the extent of permafrost (permanently frozen soils) in the northern high latitudes and the rate at which it defrosts as the climate warms. Scientists report they have found a way to improve predictions of permafrost area and stability in the northern high latitudes. [Source: University of Illinois Urbana-Champaign]
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