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David J Helfand talks to Andy Fryers

Climate Change: A Survival Guide to the Misinformation Age

Hay Festival 2019, 

There are few issues where public debate is conducted with so much misinformation and irrational exuberance. So now for something completely different: a dispassionate analysis of what we actually know and what we don’t yet know about climate change. David J Helfand, Professor of Astronomy at Columbia University, carefully distinguishes facts from fictions and physics certainties from feedback uncertainties.