Al Gore: The case for optimism on climate change

Al Gore has three questions about climate change and our future.

Watch the positive and optimistic
Al Gore talk about climate change.

First: Do we have to change? Each day, global-warming pollution traps as much heat energy as would be released by 400,000 Hiroshima-class atomic bombs. This trapped heat is leading to stronger storms and more stronger storms, he says: "Every night on the TV news now is like a nature hike through the Book of Revelation."

Second question: Can we change? We've already started.

So then, the big question: Will we change? In this challenging, inspiring talk, Gore says yes. "When any great moral challenge is ultimately resolved into a binary choice between what is right and what is wrong, the outcome is foreordained because of who we are as human beings," he says. "That is why we're going to win this."

Watch the positive and optimistic Al Gore speaking on TED - “The case for optimism on climate change.”