emissions

Carpool lanes have been an accepted part of the landscape in California for more than 40 years now. But they're less well-known in Europe, where bus lanes have taken priority instead--largely due to pervasive and well-accepted mass transit systems. But now Germany is planning to test the concept of...

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

A Tesla owner composes a hypothetical gasoline neophyte's first experience with internal combustion.

Toyota launches a series of videos on renewable hydrogen.

Audi produced a synthetic diesel fuel at a pilot plant in Germany.

Seattle will use 28 Nissan Leaf electric cars for traffic enforcement.

Fuels produced using plant-based materials can offer a promising way to reduce the carbon emitted by road vehicles. That's because their plant feedstocks absorb carbon dioxide from the air, bringing them far closer to a carbon-neutral footprint than any fuel refined from crude oil. But for...

The only region where diesel passenger cars sell in equal numbers to gasoline-powered vehicles is Europe. And until the advent this year of tougher Euro 6 emission standards, new European diesel cars were significantly dirtier than those sold since 2008 in North America. But one European transport...

Coal could remain a significant energy source for decades to come, a new report says.

Rolling coal may soon be more aggressively punished in Illinois.

Natural gas is displacing coal in U.S. electricity generation.

Carmakers are starting a pro-diesel publicity campaign in Europe.

A new Chinese documentary on air pollution has gone viral.

Naomi Klein argues that climate change is a socioeconomic issue.

Large-scale biofuel production requires cutting down forests, but will that do more harm than good?

A new study suggests people may be more concerned about air pollution than they appear.

New EU emission testing rules are set to take effect in 2017.

Air pollution from diesel exhaust is a major concern in the U.K.

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

General Motors launches its Green Dealer Recognition program to encourage energy-efficient practices.