A proposed engine design approaches the efficiency of gas-electric hybrids, but could be far cheaper.
Crop yields are expected to decline due to climate change faster than scientists thought.
But is the company scaling up its technology too fast?
The technology could make it cheaper to use wind and solar power and to switch to natural gas from coal.
It’s not enough to have compelling technology—small solar companies need a solid business model, rich partners, and manufacturing know-how.
Kauai’s utility takes a second stab at battery storage as solar heads toward 80 percent of peak power.
A Columbia scientist and his startup think they have a plan to save the world. Now they have to convince the rest of us.
The world’s best-known consciousness researcher says machines could one day become self-aware.
Solar manufacturers like Suntech are struggling. Hundreds need to die for the industry to recover.