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Former Beatle Sir Paul McCartney (L) and Rajendra Pachauri (R), ...

Thu Dec 3, 9:10 AM ET

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Former Beatle Sir Paul McCartney (L) and Rajendra Pachauri (R), Chairman of United Nations' Intergovernmental Panel on Climate Change (IPCC), who shared the 2007 Nobel Peace Prize with former U.S. vice president Al Gore, attend the European Parliament in Brussels December 3, 2009. McCartney and Pachauri took part in a hearing on global warning and food policy launching a campaign called " Less Meat = Less Heat". REUTERS/Yves Herman

(BELGIUM AGRICULTURE ENTERTAINMENT ENVIRONMENT FOOD POLITICS)