emissions

The 2016 Chevrolet Volt plug-in hybrid has received numerous accolades, including this site's Best Car To Buy 2016 Award. It's better-looking, quicker, quieter, and has a significantly longer all-electric range of 53 miles. It is not, however, certified to use E85, the fuel blend containing 85...

The U.S. Navy is moving ahead with plans to to fuel ships with biodiesel.

NASA researchers are experimenting with hybrid aircraft.

By this point, the principles of corporate crisis-management communications are pretty well established. A company with a looming PR catastrophe needs to respond immediately, keep one trustworthy and high-level executive in front of the cameras, repeatedly promise the company will make good, and...

For half a century, California has been at the forefront of reducing emissions and cleaning up air pollution. And the state has made breathtaking progress since the days of early-Seventies technicolor photochemical smog alerts. But then bad things happen--and a leak at a single natural-gas well...

Volkswagen could buy back 115,000 diesel cars in the U.S., a new report says.

Volkswagen continues to argue with regulators over modifications for non-compliant diesel cars.

The U.S. government is suing Volkswagen over its diesel cheating.

The European Parliament voted against proposed emissions rules that would have given automakers significant leeway to exceed legal limits.

A startup offers wind-turbine leases similar to ones already available for solar panels.

Honda believes it won't be able to sell conventional internal-combustion engines in China by 2025.

A new report claims policies to improve fuel economy aren't aggressive enough.

Eco-activists often indict air travel as a carbon-spewing threat to the global climate. Worldwide, commercial jets pour an estimated 700 million tons of carbon dioxide into the atmosphere each year, leading to headlines like this one in The New York Times not long ago: “Your Biggest Carbon...

Chrysler bought emissions credits from Tesla, Toyota, and Honda, a new report says.

A new budget bill cuts EPA funding, but leaves Obama's Clean Power Plan intact.

Volkswagen says a small group of employees were responsible for the "defeat device" software.

Fleet-turnover rates make implementing efficiency improvements a drawn-out process.

As world leaders met this past week in Paris to discuss carbon reductions on a global scale, mayors of four large West Coast cities—Los Angeles, San Francisco, Seattle, and Portland—met in Portland for a two-day summit and united to reduce carbon emissions on a regional level. The...

Volkswagen says a previously-reported issue with fuel-economy figures is less significant than originally thought.

A Volkswagen official e-mailed European regulators to argue for less-strict emissions rules.