Are electric cars greener? Depends on where you live
Long thought a thing of the future, electric cars are becoming mainstream. Sales in the United States of plug-in, electric vehicles nearly doubled last year. Credible forecasts see the number rising within ...
New thermocell could harvest 'waste heat'
(Phys.org) —Harvesting waste heat from power stations and even vehicle exhaust pipes could soon provide a valuable supply of electricity.
Volkswagen's XL1 said to be world's most economical car
Japanese car giants team up on green engines
Japan's eight carmakers have joined forces to develop environmentally friendly engines to stave off fierce competition from foreign rivals, a press report said Sunday.
Energy-efficient technologies developed with people in mind
When engineers design environmentally-friendly cars, such as all-electric or hybrid vehicles, they often focus primarily on their technological features. Ricardo Daziano believes they also should consider ...
How innovations can drive better transportation system
Hong Kong launches first electric taxis
Hong Kong saw its first electric taxis hit the streets on Saturday in a step towards reducing the city's high levels of roadside pollution.
Japanese car makers out to electrify Tokyo show
Move over hybrids -- the biggest buzz at this year's Tokyo Motor Show looks set to come from electric cars as the dream of affordable zero-emission vehicles moves closer to reality.
Clean energy could lead to scarce materials
As the world moves toward greater use of low-carbon and zero-carbon energy sources, a possible bottleneck looms, according to a new MIT study: the supply of certain metals needed for key clean-energy technologies.
Ford to unveil solar hybrid concept car at CES
(AP)—Ford plans to unveil at this month's International CES gadget show a solar-powered concept car that offers the same performance as a plug-in hybrid but without the need for a plug.
Diesel or electric? Study offers advice for owners of urban delivery truck fleets
(Phys.org) —For owners of delivery truck fleets who may be trying to decide between electric or diesel vehicles, researchers at the Georgia Institute of Technology are offering some advice: comparisons ...
Petroleum use, greenhouse gas emissions of automobiles could drop 80 percent by 2050
A new National Research Council report finds that by the year 2050, the U.S. may be able to reduce petroleum consumption and greenhouse gas emissions by 80 percent for light-duty vehicles—cars and small trucks—via a combination ...
How the newest diesel engines emit very little greenhouse gas nitrous oxide
(Phys.org) —The newest catalytic converters in diesel engines blast away a pollutant from combustion with the help of ammonia. Common in European cars, the engines exhaust harmless nitrogen and water. How ...
Photovoltaics beat biofuels at converting sun's energy to miles driven
In 2005, President George W. Bush and American corn farmers saw corn ethanol as a promising fossil fuel substitute that would reduce both American dependence on foreign oil and greenhouse gas emissions. Accordingly, the 2005 ...