Oct. 7, 2008 - The U.S. Postal Service is asking employees to turn down thermostats and shut off lights and unused equipment in a bid to cut energy use 30% by 2015.
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Oct. 7, 2008 - The U.S. Postal Service is asking employees to turn down thermostats and shut off lights and unused equipment in a bid to cut energy use 30% by 2015.