Celebrities like Jason Mraz, Chevy Chase, Cedric the Entertainer, Simon Baker and Alanis Morisette appear in a public service announcement for the environmental organization, Environment America.
The 35-second video promotes the "We're Ready" campaign sponsored by Environment America, TckTckTck and the Environmental Media Association. The video is a call for the world's leaders to sign a global warming deal in the upcoming Climate Conference in Copenhagen to take place December 6 through December 18.
Watch the "We're Ready" video below.
The video was filmed at the recent EMA awards held in Hollywood on October 25. Jason Mraz was one of the special honoree at that award ceremony.












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