The "spaghetti maps" that forecast hurricane tracks, such as those being used to predict the track of Hurricane Sandy, have become increasingly accurate and sophisticated. That's in part because of the work performed by some of the world's most powerful supercomputers.
In sharp contrast to his 2008 campaign, President Obama hasn't mentioned climate change on the campaign trail this time around, instead choosing to focus on the economic side of clean energy rather than the climate change side.
Republican presidential candidate Mitt Romney has accepted the scientific consensus that the planet is warming up. But he has not accepted another element of that consensus: that humans are largely responsible. His position is well-grounded in politics, but not so in logic.
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