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By Steve Hargreaves, senior writerDecember 10, 2010: 2:25 PM ET

Country: MEXICO
Author: Alister Doyle

The United Nations on Wednesday urged a global phase-out of old-style light bulbs and a switch to low-energy lighting that it said would save billions of dollars and combat climate change.

About 40 countries already have programs to switch from incandescent light bulbs, the U.N. Environment Program, or UNEP, said in a report issued on the sidelines of U.N. climate talks in Cancun.

By Chris Holly 

At National Press Club, Energy Secretary Says Innovation is Key to America's Economic Competitiveness

Washington, D.C.