Aerial Photos Tell a Story About Which Cities Are Embracing Clean Energy
Harvard Business
DECEMBER 8, 2017
You can see vast wind farms along ridgelines, of course, but I use one shorthand metric to gauge progress: how covered are the rooftops? This quick measure of the clean economy is of course superficial, but it’s in the spirit of indicators like the so-called “Waffle House” metric : the U.S. Photo by Andrew Winston.
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