2/13/2008 4:07 PM ET
Former Democratic presidential nominee blames 'intense storms' that have killed more than 50 on climate change.
2/13/2008 10:08 AM ET
Two studies show clearing land for biofuel production will do more harm than it would prevent.
2/7/2008 9:32 PM ET
Texas congressman addresses CPAC audience immediately following McCain's plea for conservatives support.
2/5/2008 3:48 PM ET
Author Mark Lynas tells audience the 'Armageddon' scenario featured in his film probably won't happen.
2/4/2008 4:18 PM ET
Bet involves a plane flying around New York City with a 'Today' banner saying 'Giants Rule, Meredith Drools.'
2/2/2008 1:48 PM ET
Liberal magazine's Foer says stance on climate has 'virtues', but he must cope with conservative 'lunatics' in base.
1/31/2008 4:29 PM ET
'Today' host acknowledges higher costs of 'green-friendly' products while slamming businesses for 'misleading' claims.
1/28/2008 3:02 PM ET
Mark Bittman: "Grain, meat and even energy are roped together in a way that could have dire results....If those trends continue, meat may become a treat rather than a routine. It won't be ...
1/25/2008 3:33 PM ET
'Today' host accosts shoppers at Manhattan grocery store to berate them about using plastic and paper bags.
1/24/2008 4:56 PM ET
Calls came out from the National Fisheries Institute and others for major corrections to a one-sided, sensationalistic story on "risky" levels of mercury found in tuna sushi (photo of culprit on ...