12/10/2007 2:09 PM ET
Former vice president tells CNN he hasn't 'ruled out the idea of getting back into the political process at some point in the future.'
12/10/2007 12:36 PM ET
Nobel winner bashes U.S., calls for ban on new coal plants, creation of wealth redistributing carbon tax.
12/5/2007 5:44 PM ET
Senate committee debates expensive climate change bill as two inches of snow blanket D.C.
12/3/2007 6:23 PM ET
Magazine's global warming advocate accuses Bush of 'foot dragging on climate change,' overlooks costs of worldwide regulation.
11/13/2007 2:36 PM ET
Estimate forecasts Lieberman-Warner bill being debated in the Senate would cost $4 trillion to $6 trillion over 40 years.
11/8/2007 12:07 PM ET
Research holds women accountable also, saying they spend '20 times as much on hygiene products.'
10/25/2007 4:49 PM ET
Stanford Professor Ken Caldeira assigns price tag 'for carbon capture and storage costs in ideal locations.'
10/24/2007 1:37 PM ET
Media treat viewers to terrifying stories about economic crisis, planetary 'peril' and bacterial 'monsters' and it's not even Halloween yet.
10/24/2007 12:58 PM ET
Anderson Cooper and Tom Foreman warn that global warming may be to blame for Southern California fires.
10/22/2007 10:19 PM ET
Gaia theory creator says 'dark time' will leave only 500 million, 'but for those who survive, I suspect it will be rather exciting.'