Study

Ethanol use doesn't automatically limit gasoline consumption.

New research suggests claims of biofuels' carbon neutrality are oversimplified.

A National Research Council study advocates increased government promotion of electric cars.

A new study finds that even degraded electric-car batteries may be able to meet drivers' needs.

A recent customer survey shows owners love their Tesla Model S electric cars.

A new study shows people are driving farther to get to work.

A new study shows a rapid drop in lithium-ion cell prices in recent years.

A new study claims availability of public charging doesn't increase consumer interest in electric cars.

A new study charts the potential benefits of mass electric-car adoption in the U.K.

Green cars were bumped out of the top 10 new-vehicle segments in 2014, new research claims.

A new study says consumers expect gas prices to increase eventually.

A new study shows expected reductions in adverse health effects from new diesel engine exhaust emissions.

The hydrogen fuel-cell cars being promoted as the future of zero-emission transport--aggressively by Toyota, slightly less so by Honda and Hyundai--generate quite a lot of controversy. Now a new analysis by the Union of Concerned Scientists suggests that the wells-to-wheels carbon emissions of a...

Clean tech holds more promise for big, money-making breakthroughs, a new study says.

A U.K. study confirms that hybrid cars are best suited to city driving.

Wind turbines are among the least-significant causes of bird deaths, a new study says.

A new study finds electric-car buyers are unsatisfied with the dealership experience.

A new study ranks states based on energy efficiency.

A new study looks at the views of hybrid owners, and everyone else, on hybrid cars.

"Peak oil" is the term given to the date after which extraction and production of oil enters terminal decline. It doesn't mean the oil is necessarily running out--more that its extraction becomes less viable as time goes on. Some suspect a similar thing is happening with automobile use in the U.S...