Green Green: Science. Policy. Living. NEW SECTION: News about the Environment Bloomberg Calls for Alternative Energy

Outlining his vision for a dramatic reconfiguration of urban energy sources, Mayor Michael R. Bloomberg says he is exploring potential for installing turbines and other alternative energy generators throughout New York City, in the water and on bridges and skyscrapers.

Speaking Tuesday evening at a conference in Las Vegas on alternative energy, Bloomberg said he will ask private companies to study how windmills, tidal turbines, and solar energy panels might be built, in an attempt to move the city toward reliance on renewable sources of energy.

"In New York," he said, "we don't think of alternative power as something that we just import from other parts of the nation."

His ideas could place New York at the forefront of a handful of cities across the nation seeking wind power and other alternative sources of energy.

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