04/25/2014 10:54 am ET

Al Gore Is Not Giving Up

Anthony Harvey via Getty Images

But when we meet, Gore says he’s more convinced than ever that climate change can be stopped, predicting a coming “political tipping point” and reaching for historical analogies like the civil rights movement or the battle for gay rights for inspiration. “How long will it take us to get to the point where we really start solving it?” he asks. “Not long.”

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