National Science Environment Several Cities Convert To LED Street Lights In Conservation Efforts 4:41pm November 21, 2016 by Grace Hood U.S. Around the Nation Science Environment Energy Share URL copied to clipboard! Copyright 2016 NPR. To see more, visit http://www.npr.org/. 300x250 Ad More All Things Considered National R&B singer Sam Moore dies at age 89 by Scott Detrow National In Los Angeles, business owners try to pick up the pieces after wildfires by Kira Wakeam 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate
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