Climate experts urge immediate action to offset impact of global warming

Governments and consumers in the United States and worldwide should take immediate steps to reduce the threat of global warming and to prepare for a future in which coastal flooding, reduced crop yields and elevated rates of climate-related illness are all but certain, top U.S. scientists said Tuesday.

At a meeting organized by AAAS and its journal, Science, the climate researchers argued that while some policy experts and sectors of the public dispute the risk, there is in fact no cause for doubt: The world is significantly warmer today than it was a century ago—and it's getting warmer. Without action now, they warned, the impact could be devastating.

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