Germany plans to squeeze hydroelectric power out of a coal mineThere could be a sustainable future for former mining towns.By A. Dalton, 03.17.2017
Delaware Ph.D. student hopes to solve energy woes with renewable hydrogen productionBy Z. Lutz, 04.05.2012
Strawberry Tree brings free, solar-powered charging to Belgrade's BlackBerrys, more (video)By A. Toor, 06.17.2011
