Scientists have found a single catalyst for artificial photosynthesis that could create storable solar energy in a liquid or gaseous form for use in transportation or electric power generation. But can the fuel be made efficiently?
Majumdar is stepping down after three years at the head of the U.S. Department of Energy's advanced energy research arm
By pairing biology and photovoltaics, a new "electrofuel" system could build alternative fuels
The U.S. government aims to improve energy production from renewables to oil, but what does that mean in practice?
With modern plug-in cars such as the Nissan LEAF and Chevy Volt on the road for more than a year now, their owners have a lot to say
A new battery from A123 Systems offers greater flexibility, more power and, potentially, lower overall costs
Using stimulus funds, two transit systems, in California and Washington State, pioneer a cleaner, greener and less expensive method of transportation
A demonstration project in California may prove that steam created with the sun's heat can help get more oil out of the ground
Alternatives for aviation industry and the military pose issues related to land use, clearing peatland, fertilizer use, costs and more emissions
Material changes enable a new battery to store more electricity--and could boost the driving range of electric vehicles
Companies and researchers are working on infrastructure and technologies to help bring the nation's growing stock of natural gas to fuel tanks, including those of long-haul vehicles
New technology converts all kinds of plant waste into usable fuel--and is part of a growing array of technologies aimed at island energy independence
Emerging technologies could make the internal combustion engine substantially more fuel-efficient, even as green vehicles make inroads
Different Strokes: New Lower-Pollution Auto Rickshaw Engines Could Save Lives and Curb Climate Change [Slide Show]
The two-stroke rickshaw, although convenient in traffic-snarled cities, is a toxic nuisance--but new engines could clean up its act
What are the options for decreasing demand for oil and lowering greenhouse gas emissions in cars and light trucks?