NASA seeks proposals from researchers and technologists for a potential green alternative to the highly toxic fuel that currently powers space flight.
A bunch of Boise State engineering students who call themselves Greenspeed set a land speed record for vegetable-oil powered vehicles, going 155 mph.
The U.S. Department of Energy announces the winners of its 2011 Sustainability Awards, who saved taxpayers a combined $4 million.
New data shows the use of alternative fuel vehicles in the fleets of corporations and government agencies rising about seven percent to 826,318.
The AirRay auto, a concept car from EarthSure, is powered solely by renewable energy sources such as solar and wind power and could potentially even put energy back into the grid.