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In this image released by Greenpeace on Sunday Nov. 28, 2010, a  giant balloon rises next to the Chichen-Itza pyramids in Mexico's Yucatan peninsula, Sunday Nov. 28, 2010.  Facing another year without a global deal to curb climate change, the world's nations will spend the next two weeks in Cancun, Mexico, during the annual conference of the 193-nation U.N. climate treaty, debating how to mobilize money to cope with what's coming, as temperatures climb, ice melts, seas rise and the climate that nurtured man shifts in unpredictable ways. (AP Photo/Greenpeace)
Photo by: Prometeo Lucero
In this image released by Greenpeace on Sunday Nov. 28, 2010, a giant balloon rises next to the Chichen-Itza pyramids in Mexico's Yucatan peninsula, Sunday Nov. 28, 2010. Facing another year without a global deal to curb climate change, the world's nations will spend the next two weeks in Cancun, Mexico, during the annual conference of the 193-nation U.N. climate treaty, debating how to mobilize money to cope with what's coming, as temperatures climb, ice melts, seas rise and the climate that nurtured man shifts in unpredictable ways. (AP Photo/Greenpeace)

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