Climate Change's Growing Threats

"Superstorm" Sandy might've been the loudest, but the warnings about the growing threats from climate change having been coming fast and furious this fall. As part of our collaboration with the PBS program NOVA, Sam Eaton files this series of three reports examining some of the latest research and most pressing concerns.

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    Arctic sea ice reached a new record low in the summer of 2012, raising concerns that arctic methane emissions could accelerate as a result of warmer ocean temperatures. (Photo: USGS)

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    USGS scientists have been measuring methane levels in surface waters in the arctic to look for signs of increased methane hydrate releases. (Photo: USGS)

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