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30 Seconds to Mars, an alternative rock band fronted by Hollywood pretty boy Jared Leto, traveled to Greenland to shoot the video for their latest single, "A Beautiful Lie," in the hopes that the footage would alert their fans about the problem of global warming. They are also working with the NRDC, the Natural Resources Defense Council, to make sure their carbon footprint stays small, despite all that travel, and theisic stays big.

FInd out more about what we all can do to keep carbon emissions down at the NRDC site.

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