Emissions

Carbon dioxide in Earth's atmosphere just reached a major milestone

Grow food, not grass, to fight climate change

The outcry over EPA's proposed racing ban

Super-fast and electric are words of the week at Geneva Motor Show

Cheap gas translates into dumb car-buying decisions

Washington Auto Show: Making policy for the car of the future

Could cleaner air be worsening global warming?

U.S. Christmas decorations use more energy than many nations do in a year

The double-edged sword of cheap gas

4 things to know about the Paris climate deal

CO2 emissions stall, even as economy grows

Why the Paris climate talks might actually work

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