US States Vow to Defend Auto Fuel Efficiency Standards

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Nearly a dozen U.S. states and Washington, D.C., on Tuesday promised to defend federal automobile efficiency standards against a rollback proposed this week by Scott Pruitt, the head of the Environmental Protection Agency. "All Americans ... deserve to enjoy fuel-efficient, low-emission cars and light trucks that save money on…


Coral Farms Revive the Reefs

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Coral reefs cover less than one percent of the world's ocean beds, yet they are home to a quarter of all marine life on the planet. But they are facing serious challenges that threaten their survival. As Faiza Elmasry tells us, beneath the waters of…


Facebook Faces Calls for Change

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The fallout continues for Facebook over how it handles user data and privacy. U.S. and European lawmakers are calling for Facebook CEO Mark Zuckerberg to testify, and regulators have opened investigations. Michelle Quinn reports on how the social media giant is facing a tipping point…