How volcanoes have driven climate change throughout Earth history

A detailed explanation for climate change throughout Earth history and for why 2016 is the hottest year on record. In this lecture delivered last year at the Geological Society of London, Dr. Peter Ward, suggests volcanoes rule climate and major effusive, basaltic eruptions punctuate the geologic time scale. Dr. Ward is also author of the book What Really Causes Global Warming?br />