He’ll be gray, but was he green enough? Not according to these Greenpeace billboards at Copenhagen airport, on the eve of the crucial climate summit:

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Thousands of people will be streaming through Copenhagen airport as they arrive for the two weeks of international climate treaty talks that kick off on Monday, Dec. 7th. Greeting travelers at the airport will be large billboard advertisements with the digitally aged faces of world leaders, like US President Barack Obama and French President Nicolas Sarkozy, apologizing for not delivering a strong deal at the Copenhagen treaty talks. Read more. Watch slideshow.