Some climate change impacts may appear sooner than expected

For the 70,000 residents of the Marshall Islands, global climate change isn't a theoretical concern with far-off potential consequences. The island nation is nowhere more than six feet above the Pacific Ocean, and because ...

Ex-NASA expert issues call for climate solutions

Longtime NASA expert James Hansen has issued a call for new approaches to stop global warming, saying solutions are needed and that currently accepted targets are too dangerous.

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