At the COP talks, the United States is driving all the other countries crazy. The U.S. response: "What, us?"

China's conditions for a climate deal include the demand that it and other growing economies would have to meet different standards than rich countries. So, essentially, nothing has changed.

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Warren Buffett's buying Topaz Solar Farm, a California project worth $2 billion.

Is Silicon Valley taking over the auto industry from Detroit?

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Gainesville, Fla., ranks between Japan and Spain on per capita solar power.