Describing Energy Secretary Steven Chu's new job is simple: Oversee the transformation of the United States from a carbon-based economy to one based on clean energy.

Pulling it off, however, will be a little more challenging. It will be a massive undertaking, if it can be done at all — bigger than the Manhattan Project that split the atom and the Apollo program that put man on the moon. Combined.

"We essentially need a second industrial revolution that can generate lo ...

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