Al Gore

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Al Gore, 45th vice president of the United States and a controversial public figure, was awarded the Nobel Prize for Peace in 2007 for his efforts to raise awareness about global warming. He has devoted a very large portion of his life to environmental issues, especially in his multiple Academy Award-winning 2006 documentary, "An Inconvenient Truth," his best-selling book of the same name, and through his Repower America campaign. (Source: Britannica Online Encyclopedia / Photo: openDemocracy/flickr)

Ice sculpture Al Gore belches exhaust

Media Mayhem: Top 5 tall tales by climate change deniers in 2009

Greenbuild 2009 wrap up

Climate rap battle: Gore vs. Monckton

Al Gore's post-Copenhagen plan

Al Gore's Copenhagen climate summit speech

Gore vs. Palin on climate change

Palin, Gore battle over climate change

Al Gore flies commercial

Green teens honor Al Gore

Al Gore's 'Saturday Night Live' cameo

Al Gore's plan B: Act crazy

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