Climate change science seems to change from week to week, a fact that is not lost on the loud minority of climate denialists seeking to kick dirt on the growing facts of global climate change. But what do the new numbers tell us, and what effect does a constant stream of new numbers mean for the future of public discourse and international climate politics? Robert Frank from the New York Times updates Peter Stock on the latest climate research. Is Canada muzzling its climate scientists?

Government scientists can’t talk to the media without approval by their supervisors, who include cabinet ministers. The latest federal budget discontinued funding for the Canadian Foundation for Climate and Atmospheric Sciences. Are scientists being silenced? Tyler Irving talks to Hannah McKinnon of the Climate Action Network about a new report called “Troubling Evidence – The Harper Government’s Approach to Climate Change Research in Canada.”