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Climate Change

Climate Change Could Be a Tougher Test Than War

It's the kind of menace that a last-ditch effort probably can't defeat.

Imagine an entirely plausible scenario for the effects of climate change in 2045. The Greenland ice sheet has melted entirely, adding 20 feet to the oceans. Unprecedented outbreaks of pests have ruined crops of corn, wheat and rice around the world, causing food shortages and riots. In the U.S., the army patrols major cities.

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