Christina Nunez is a Washington, D.C.-based producer of energy content at National Geographic. Previously, she has been a producer, editor and writer at websites including AOL.com and NPR.org.
Deep in the forests of the U.S. South, tree scraps are fueling a little-known but controversial energy boom: wood pellets. Long used to heat homes in the country's Northeast, they're now destined for a new market. more »
Dec 27, 2014 12:00 AM Features