The Wall Street Journal
by Robert Bryce

During his address to Congress last week, President Barack Obama declared, "We will double this nation's supply of renewable energy in the next three years."

While that statement -- along with his pledge to impose a "cap on carbon pollution" -- drew applause, let's slow down for a moment and get realistic about this country's energy future. Consider two factors that are too-often overlooked: George W. Bush's record on renewables, and the problem of scale.

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