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In this video, The Times's Jim Yardley tours the Yellow River, witnessing China's rampant pollution, booming urbanization and uncertain future.
Endangered whooping cranes have found a haven on George West's Tennessee farm -- itself in danger of being swallowed up by development.
In this video Science reporter Andy Revkin examines the long-term social consequences of rising temperatures and seas around the globe.
The overwhelming scale of the spill in the gulf is taxing the available supply of protective boom. Pete Parker, an oil spill expert, patches up urgently needed used boom to continue fighting the spill.
This video discusses how beavers were driven out of the New York metropolitan area 200 years. Now they are back.
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