An animated fly-through shows the major components of a new zero-emissions, zero-waste city being built in the Middle East.
A new human-powered generator tries to capture walking energy.
An amendment to the stimulus bill could convince companies to build factories in the U.S. this year.
The stimulus package could yet be a big boon to the slowing solar industry.
A supersonic bullet is fired with a record-breaking 10 megajoules of muzzle energy.
Carbon nanotubes could replace expensive platinum catalysts and help finally make fuel cells economical.
Self-organizing equipment could cut energy bills.
A new catalyst could make ethanol fuel cells practical for portable gadgets.
Could geothermal heat boost biofuel output?
A study suggests that increased power demand from plug-ins can actually reduce pollution.