Greenhouse Gas Emissions and America's Climate Change Deniers

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Despite the near unanimous conviction of climate scientists, Americans are increasingly skeptical that global warming is caused by human activities.  We look at the possible reasons and the potential consequences. Also, the Ukrainian government tracking protesters through cellphones, and security at the Sochi Winter Olympics. We hear about so-called "jihadist widows."

Banner image: Colorado flood, 2013. Photo: Nurpu



Warren Olney