Permafrost -- the perpetually frozen foundation of the north -- isn't so permanent anymore, and scientists are scrambling to understand the pros and cons when terra firma goes soft.Permafrost serves like a platform underneath vast expanses of northern forests and wetlands that are rooted, literally, in melting permafrost in many northern ecosystems. But rising atmospheric temperatures are accelerating rates of permafrost thaw in northern regions, says MSU researcher Merritt Turetsky.
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