emissions

Several large companies are prepared to pay for carbon emissions in the near future.

The Tennessee Valley Authority will shut down eight electricity-generating units, which account for nearly a fifth of its yearly coal use.

An EU emissions rule delay has environmentalists fuming, but German luxury car makers may be breathing a sigh of relief.

A case before the Supreme Court challenges EPA regulations of greenhouse gas emissions, but not those involving cars.

The number of American households without a car is rising, a new study says.

California is looking to get older vehicles off the road, and is paying drivers to trade them in.

It stands to reason: Take all vehicles off the roads, and the air will get cleaner. But now we can answer the question, "How much?" And it turns out that the answer is, "A lot." In a new paper, A national day with near zero emissions and its effect on primary and secondary pollutants, published in...

Stricter limits on new power plant greenhouse gas emissions and a weak export market have put the American coal industry on the ropes.

New York's food vendors are going electric, thanks to a pilot program that replaces generators with a connection to the grid.

Every so often, electric-car skeptics will attack the idea of using grid electricity to power a car by bringing up coal. "Yeah," the argument goes, "but you're just burning coal instead of gasoline in your electric car--so how's that any better?" There is, of course, a fair amount of science that...

The American author Bill Bryson one wrote that "the fact is that [Britain] is still the best place in the world for most things...to go for a walk...or stand on a hillside and take in a view." Sadly, it seems fewer and fewer Britons are doing so these days--with a new report suggesting that one in...

The environmental impact of plug-in electric cars is a hot topic right now, and a fiercely debated one at that. A couple of weeks ago, Tesla Motors CEO Elon Musk pledged to dive into it himself. Musk tweeted, "Am seeing many poorly argued attacks on 'true' CO2 impact of electric cars. Will rewrite...

You've likely never heard of a Hindustan Ambassador--and unless you're an old British-car geek, you've certainly never seen a Morris Oxford Series III. But the Ambassador--fondly known as the "Amby"--is both India's de facto taxi cab and the oldest production car in the world. Now it's been fitted...

With substantial weight savings and all-new drivetrains, the seventh-generation 2015 Volkswagen Golf TDI -- coming to the U.S. next year as a 2.0-litre TDI model, and also a hot hatch Golf GTD -- suggests diesel fans may get the kind of fuel-efficiency figures normally reserved for hybrid cars. But...

We love data. And we love simple but informative graphic presentations of complex data even more. Which leads us to today's infographic, a presentation of the sources and activities that produce greenhouse gases as a result of human activity. Inspired by an earlier similar graphic from 2005, the...

Does the supposedly clean, green Tesla Model S really pollute more than a gas-guzzling Jeep Grand Cherokee sport-utility vehicle? That's what one analyst has claimed. In an exhaustive 6,500-word article on the financial website Seeking Alpha, analyst Nathan Weiss lays out a case that the Model S...

If you've not heard of the Gumball 3000 before, it's fairly simple to explain. Blend hundreds of well-heeled supercar and sports car owners, a few thousand miles of roads, intersperse with fancy hotels and not-always-entirely-legal driving, and serve to the public. Given those ingredients, you'll...

You won't have been able to feel it, but on Friday the levels of carbon dioxide in the atmosphere hit a milestone amount. For the first time in recorded history, CO2 levels averaged 400 parts per million (ppm), or 0.04 percent, at a monitoring station on Mauna Loa, Hawaii. And, say scientists, it's...

For several years, England's capital city has charged a fee for vehicles entering a center zone, under the guise of "congestion charging". In reality, it's a tax based on CO2 emissions, all vehicles emitting under 100 grams per kilometer of carbon dioxide allowed free passage into the center. Until...

Several Japanese automakers are off to a great start meeting future emissions and gas mileage targets, according to the latest EPA data. As rules become ever more stringent requiring automakers to build cleaner, lower-consumption cars, Toyota, Honda and Nissan already build cars that meet targets...