A new lithium-ion battery from A123 Systems could help electric cars and hybrids come to dominate the roads.
Sometimes carbon credits fund clean industries that would prosper anyway.
Creating and ordering my greeting cards online was easy, but the layers of packaging make me wonder if I've damaged the earth in the process.
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.