Scientists worry that the warming climate may trigger the release of vast amounts of carbon now stored naturally in forests and the ground. The released carbon would join man-made greenhouse gases, further warming the atmosphere and producing a ?feedback loop,? which would release even more stored carbon and cause more heating. One promising technique would use the earth to store some man-made carbon dioxide by pumping it underground.
By Dita Smith, Laris Karklis And Patterson Clark, The Washington Post - February 22, 2007
