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Melting sea ice in the Arctic may cause more rapid melting of the permanently frozen ground or permafrost. That will increase green house gas emissions ? but some of the emissions may be countered by the faster growth of vegetation in the region.
New research shows melting sea ice caused by global warming may be causing permafrost to melt more quickly. Dr. Andrew Slater from the National Snow and Ice Data Center explains to host Bruce Gellerman that the warming could be having unintended consequences ? both positive and negative – for the tundra ecoysystem.