EPA chief: US needs a single standard for fuel efficiency

The acting head of the Environmental Protection Agency said Tuesday that the United States needs a single standard for fuel efficiency for cars and trucks, signaling a possible showdown with California and other states that ...

Will electric vehicles take over the world?

As more people and goods move around the planet, our cars, planes, trains, and ships are having a growing impact on the climate. Transportation now generates almost a quarter of the world's greenhouse gas emissions, and in ...

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