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Nature 447, 13 (3 May 2007) | doi:10.1038/447013a; Published online 2 May 2007

Live Earth taps into sense of joy

Emma Marris

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Rock 'n' roll and the movies join the fight against climate change.

In some contexts, black suits over black shirts might seem depressingly funereal. But for Rob Reiner, Hollywood writer-director-producer-actor, and Al Gore, the Oscar-winning former US vice-president, the black-on-black look is the sort of chic more or less de rigeur when opening the Tribeca Film Festival.