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The extreme weather, including a near-record number of tornadoes , in 2011 forced the debate of the impact of climate change on severe weather to resurface. [More]

Plants need water to live, but exactly how much? Scientists have built a simulator to figure out how to far we can push crops before they die of thirst, in preparation for a hotter climate. It's a research project that seems particularly fitting for this year, when Texas has suffered (and continues to suffer) through the worst drought year on record.

As natural disasters increase, insurance companies are paying out more and more. To keep costs down, the industry wants the government to be better prepared.