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Methane from Northern Permafrost — A Cause for Concern?

Large areas of northern regions are covered by permafrost. As the Arctic warms, the permafrost will degrade and lead to increased emissions of greenhouse gases such as methane. Recently, global atmospheric methane concentrations have begun to increase again after being stable for a decade, and the Arctic is one of the possible sources. Dr. Rachel Chang will outline results from her Arctic research and discuss potential causes that could be contributing to this increase in a talk to the Nova Scotia Institute of Science on Monday Jan 5, 2015. Read more