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Ask someone their thoughts on global warming, and chances are you will evoke a rather opinionated response. For much of the West, and especially in the United States, the issue of global warming has become deeply intertwined with partisan politics. Whether it's Al Gore's climate change activism, or the recent climate change data scandal in the UK, the subject of global warming is sure to start a spirited debate. For the developing world, climate change is often a useful rallying cry against the perceived depredations of the developed world.
But behind the political point-scoring lies genuine concern. For those facing the immediate consequences of a warming planet - be they melting glaciers, drought or rising water levels - global warming may soon be a matter of life and death.
This week marks the 41st anniversary of Earth Day. Using data provided by Gallup, RealClearWorld explores the question: Who is most concerned about the threat of global warming?
(All photos credit: AP Photo)