Fearing lost profits, the nation's investor-owned utilities are moving to blot out the solar revolution.
Solar engineers are scrambling to make their products smaller and more efficient.
Former basketball pro Mark Davis pivots to a career in the solar industry.
Rich geothermal resources could replace much of Japan's shuttered nuclear power--but at the risk of spoiling its treasured onsen
Los Angeles is kicking coal, but it isn't easy. This labor-enviro coalition is helping low-income Angelenos make the transition.
Solar Impulse is a sun-powered airplane with the wingspan of a 747, the weight of a small car, and enough battery storage to fly for up to 36 hours at a time.