Last year George Clooney was the sexy man gracing Vanity Fair's first ever "Green Issue." This year they upped the cuteness factor by placing Leo and the cute cub, Knut on the cover.  The idea is to raise awareness of the wonderful things the world has to lose out on with the long term effects of global warming.  We all know Leo is a cheerleader for all things to help make the world a more eco-friendly place.  The man can do more than just act and look hot.  As if we didn't already count down the days to get our VF in the mail, now we have another reason to want to check out this month's issue. 















To see more of Leo and Knut cuteness just


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