Energy-thrifty White House turns deeper shade of green 

From USA TODAY: WASHINGTON — The White House complex and the federal government are going green — and not just with Christmas trees and holly. As President Obama meets with world leaders at the United Nations climate conference in Copenhagen today, the government he runs at home is quietly engaged in an unprecedented effort to reduce its carbon footprint, increase energy efficiency, conserve water, cut waste and more.In the complex that includes the White House, that means more efficient heating and cooling systems as well as organic paint, low-flow toilets and lights that turn off by themselves. Even the 800 Christmas ornaments adorning the 18-foot tree in the White House Blue Room were recycled from previous administrations in a nod to the environment and the bad economy. Read more

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