Show for Aug 22, 2010. Planetwalker: The Pilgrimage of John Francis
For two decades, environmental activist John Francis wandered America on foot while keeping a vow of silence. Along the way, he got to know a side of himself and this country that few experience. An extraordinary travel story and a remarkable person. Interview originally broadcast August, 2009.
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Show for May 16, 2010. Witness to Extinction: Biologists Barry Sinervo, Donald Miles and Raymond Huey
In a new study that’s making headlines around the world, biologists Barry Sinervo, Donald Miles and colleagues report that lizards worldwide are dying off, apparent casualties of rising temperatures. The study suggests that an era of climate-driven mass extinctions may have already begun, sooner than many scientists expected. I spoke to Sinervo, Miles and fellow biologist Raymond Huey last week, just after the news broke. They described the research and the implications in detail. The show’s well worth a listen: this is not only a potentially game-changing piece of research (if correct), but also a dramatic story of accidental discovery.
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Lizard extinction risk under some temperature scenarios. (Sinervo, et. al.)
