Demand for corn-derived fuel is driving up food prices, but new technologies could help.
Better wind forecasts could prevent blackouts and reduce pollution.
Researchers genetically modify a crop to break down its own cellulose.
The London Olympics' site reflects a trend toward urban planning that contemplates climate resiliency and reduced emissions.
Heating and air-conditioning systems that use thermoelectrics could make plug-in hybrids more practical.
New materials improve the reliability, safety, and storage capacity of lithium-ion batteries.
Advances in floating platforms could take wind farms far from coasts, reducing costs and skirting controversy.
A novel hybrid engine could slash fuel consumption.
New infrastructure may help launch electric cars in Israel and Denmark.
A new solar cell is 27 percent more efficient without being more expensive to make.