PBS NewsHour: Kevin Trenberth and Jeff Masters on why the strongest storms are getting stronger

The sheer deadly power of the Philippine typhoon Haiyan has cast a fresh spotlight on the question: Are storms getting stronger as the planet gets warmer? 

To examine the science of super storms, Gwen Ifill talks to Kevin Trenberth of the National Center for Atmospheric Research and Jeff Masters of Weather Underground.

http://www.pbs.org/newshour/bb/climate-change/july-dec13/storms2_11-12.html