Great Stories, Great Solutions
A Survival Guide for the Planet
Ann Arbor, Michigan has been a leader in converting streetlights to LEDs, but the city has had to work out some kinks along the way.
Photograph by Tom Drew
By Josie Garthwaite
For National Geographic News
Published January 20, 2011This story is part of a special series that explores energy…
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Making smart changes shouldn’t be this hard.
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