Wed 3/25/15 Hr 4 : Guest: William Rosen, author, The Third Horseman: Climate Change and the Great Famine of the 14th Century.

Audio Link: 

Download

Air Date: 

March 25, 2015

Broadcast Hour: 

Fourth Hour

Wed 3/25/15 Hr 4 : Guest: William Rosen, author, The Third Horseman: Climate Change and the Great Famine of the 14th Century.