Jeff Gowdy's first job out of college was at a big consulting firm in Washington, D.C. The University of Virginia graduate put in a few years but soon realized he wanted his work to mean something more. 

"I wanted to do something different than big, massive corporate accounts," says Gowdy, 35. "I was working on things that didn't align with what I wanted to work on day to day.  I decided I wanted to make a career switch and focus on sustainability.

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