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Secret Life of Scientists - Katharine Hayhoe: Climate Change Evangelist

Katharine Hayhoe: Climate Change Evangelist Katharine Hayhoe: Climate Change Evangelist
http://video.pbs.org/widget/partnerplayer/2365150443/?player=WGBY-PBS&w=512&h=288&chapterbar=true&autoplay=false /episodes/get/11333 /episode/11333 Secret Life of Scientists: Katharine Hayhoe: Climate Change Evangelist /episode-player/11333
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