Stephen Schneider reminds policy makers that scientists can't decree what constitutes a perilous increase in global temperatures. - "It's not a scientist's judgment to decide what's dangerous."
Kerry Emanuel, Ernest Moniz. Despite their calm demeanors, Kerry Emanuel and Ernie Moniz impart grave and pressing concerns about global warming to this Museum gathering.
Ronald Prinn uses the Greenhouse Gamble wheels to demonstrate the risks and benefits of taking steps to mitigate climate change.