But some cynics are suggesting that Madonna singing a song about climate change in an energy-gobbling sports stadium full of people who shat out tons of carbon getting there while being broadcast to billions of environment-slaughtering television sets might not be the best way to stop the world from perishing in a whirlwind of fiery terror. And that's why Al Gore has beefed-up Live Earth's credibility by asking everyone to sign a special climate change pledge that will save the planet via the power of woolly-worded vague promises about making the governments of the world do stuff and stuff. - more on this story

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