vehicle efficiency standards
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California and Automakers Confront Trump’s EPA
California had leverage and used it to cut a favorable compromise with four auto manufacturers over auto mileage standards.
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Will Electric Vehicles Take Over the World?
Many countries are banning fossil fuel run cars in favor of electric vehicles. How does the future look for EVs and how green are they really?

You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!
