A new type of engine could be relatively inexpensive.
Better batteries are making electric motorcycles possible, providing a cleaner alternative to pollution-spewing gas-powered bikes.
We knew they would save gas; now we know they're cleaner, too.
Researchers find a new way to make cheap and flexible photovoltaic cells.
Tiny devices that harness the energy from ambient vibrations could one day be used to power a variety of wireless sensors.
With much of its land already below sea level, the Netherlands is charting a course around the ominous trends of climate change.
Nanoengineered materials could reduce greenhouse-gas emissions.
The nanotech pioneer turns to energy.
New photovoltaics get better performance throughout the day.
With the help of catalyst.