Professor James Anderson did much of the research resolving the mystery of which industrial chemicals destroyed the ozone layer over Antarctica. The urgent need to deal with deadly UV radiation led to the signing of the Montreal Protocol in 1989. Now, almost 30 years later, Anderson is doing ozone research again – this time over the continental US. Harvard Magazine said as early as 2012 that Atmospheric Chemists report a serious and wholly unexpected risk of ozone loss over the United States in summer. Anderson explains how climate change is a factor in this new phenomenon, and answers basic questions about the interconnectedness of climate systems, the fallacy of global average temperatures, how living and teaching in Boston/at Harvard influenced his views on climate change and much more. Produced by TUC Radio.