Are there points given out to warn us some other disaster that "may" cause us to die earlier?
Singapore — Reuters Last updated on Wednesday, Jul. 01, 2009 02:56AM EDT
The amount of carbon locked away in frozen soils in the far Northern Hemisphere is double previous estimates and rapid melting could accelerate global warming, a study released today says.
Large areas of northern Russia, Canada, Nordic countries and the U.S. state of Alaska have deep layers of frozen soil near the surface called permafrost. Global warming has already triggered rapid melting of the permafrost in some areas, releasing the powerful greenhouse gases carbon dioxide and methane.
As the world gets warmer, more of these gases are predicted to be released and could trigger a tipping point, rapidly driving up temperatures, scientists say.
Singapore — Reuters Last updated on Wednesday, Jul. 01, 2009 02:56AM EDT
The amount of carbon locked away in frozen soils in the far Northern Hemisphere is double previous estimates and rapid melting could accelerate global warming, a study released today says.
Large areas of northern Russia, Canada, Nordic countries and the U.S. state of Alaska have deep layers of frozen soil near the surface called permafrost. Global warming has already triggered rapid melting of the permafrost in some areas, releasing the powerful greenhouse gases carbon dioxide and methane.
As the world gets warmer, more of these gases are predicted to be released and could trigger a tipping point, rapidly driving up temperatures, scientists say.