Though I think the scientific catch-phrase du jour is overused and probably overrated, this article in the Guardian points to an excellent example of where the concept of 'tipping point" comes from. Global warming is melting the Siberian Tundra which hosts a huge stockpile of methane (perhap 70 billion tons, 1/4 of the world's ground-stored methane). The release of the methane (a greenhouse gas) will then speed the heating of the atmosphere.
Posted by duver001 at August 15, 2005 07:49 AM | TrackBack