4/8/2014 2:18 PM ET
Ann Curry links ‘extremes’ cold, heat, drought, fire and more to global warming in spite of scientists who disagree.
2/5/2008 2:48 PM ET
Author Mark Lynas tells audience the 'Armageddon' scenario featured in his film probably won't happen.
8/24/2006 4:14 PM ET
Scientists disagree with journalist who says global warming is significant factor in hurricane strength or sea-level rise.