Tesla's Musk: fracking threatens electric cars

Tesla founder Elon Musk warned Tuesday that the fracking boom is a deep threat to the nascent electric car industry, because of its impact lowering gasoline prices.

Debate stirred over 1st major US tar sands mine

(AP) -- Beneath the lush, green hills of eastern Utah's Uinta Basin, where elk, bear and bison outnumber people, the soil is saturated with a sticky tar that may soon provide a new domestic source of petroleum for the United ...

Amid US gas boom, split over environment risks

The United States is seeing a natural gas boom thanks to discoveries of abundant shale gas, and at the same time a groundswell of opposition from critics who say the environmental risks from drilling are too great.

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