Dave Levitan is a freelance journalist based in Philadelphia who writes about energy, the environment and health. His articles have been published by Reuters, SolveClimate, IEEE Spectrum and Psychology Today.
August 21, 2014
Small hydropower projects have the potential to bring electricity to millions of people, but experts are sounding an alarm.
May 14, 2014
Higher costs and technical challenges from the ocean environment itself has put it decades behind wind and solar. Can it catch up?
December 9, 2013
Here's a closer look at whether large utility-scale solar projects will continue to grow or fade into the distance.