emissions

 
Next Mercedes-Benz small cars to get even tinier engines

Next Mercedes-Benz small cars to get even tinier engines

Not so many years ago, a 1.2-liter engine would only have been found in the U.S. in the smallest and least impressive of subcompact cars. It might have been a 3-cylinder, and certainly wouldn't have had even 100 horsepower. But times change, and engines of that size will soon be found even in the... read more

July 26, 2017 by -
 
Freightliner Inspiration Truck self-driving truck concept

Several states want far cleaner diesel trucks; EPA to start rulemaking?

Almost one-third of the heavy trucks on U.S. roads now use the most stringent emission-control systems, which radically reduce their emissions of nitrogen oxides, soot, and... read more July 16, 2017 by


 
Semi trailer

Diesel trucks with latest emission controls displacing dirtier, older ones on U.S. roads

The phrase "clean diesel" has largely fallen into ill repute after it was associated with Volkswagen's diesel emission deceit, but the latest diesel technology can honestly... read more July 14, 2017 by


 
Chrome exhaust pipe

Combustion engines: high emissions from short commutes a huge challenge

Drivers in the U.S. have longer commutes than those in Europe and Asia, on average. In the U.K., short commutes in vehicles with combustion engines—whether gasoline or... read more July 11, 2017 by


 
Toyota 'Project Portal' proof-of-concept hydrogen fuel-cell powered semi tractor, for Port of LA

Missing piece in global vehicle emission puzzle: heavy trucks

A global push to reduce vehicle emissions and create cleaner air for future generations has been underway for half a century now. However, while many governments around the... read more July 7, 2017 by


 
Nicolas Hulot, French minister of ecological transition, announces 2040 ban on vehicles with engines

France plans to ban all gasoline, diesel vehicles by 2040

To most North Americans, the idea of banning all vehicles with internal-combustion engines seems unthinkable. Filling up with gasoline (or diesel) is as American as are... read more July 6, 2017 by


 
Gas pump

States have battle plan if Trump rolls back fuel-economy, emission rules

The Trump Administration has had a challenging start on numerous fronts, but its work to slash emission rules and eliminate regulations continues. The EPA administrator... read more June 22, 2017 by


 
A semi-autonomous BMW 5 Series, on the highway outside of Munich

Even BMW's hometown may ban older diesel cars

Diesel-powered vehicles are facing a tough road ahead as more European cities move to ban older, dirtier, oil-burning cars. Diesel has long been the preferred fuel of... read more June 20, 2017 by


 
Golden Gate Bridge, connecting San Francisco and Marin County, California

Trump EPA backs away from attacking California emission waiver

Sometime between March 1 and 7, a specific page vanished from the website of the U.S. Environmental Protection Agency. Amidst coverage of the removal of the word "science"... read more June 19, 2017 by


 
Electric-car wells-to-wheels emission equivalencies in MPG, May 2017 [Union of Concerned Scientists]

Electric cars cleaner than any gas-only car for 97 percent of U.S. drivers

Electric cars have no tailpipe emissions when running. But unless they're charged entirely on renewable energy—still statistically unlikely today—there are... read more June 5, 2017 by


 
Electric cars dominate U.S. climate-friendly vehicles  [data: U.S. EIA; map: Climate Central]

Electric cars are cleaner than hybrids in most places: mapped once again for your convenience

The question is a reasonable one: electric cars may be zero-emission, but what about the electricity to recharge them? While renewable energy is growing globally, burning... read more May 31, 2017 by


 
Volkswagen Plant, Wolfsburg, Germany (photo by Richard Bartz)

Lasting legacy of VW diesel scandal: EU gets serious about testing

The Volkswagen diesel scandal left lasting imprints on the entire automotive industry, and may have changed the way regulators look at vehicles using the fuel forever. That's... read more May 31, 2017 by


 
Donald Trump

Two words the Trump Administration can't say: climate change

During President Donald J. Trump's half-hour meeting with Pope Francis at the Vatican yesterday, the pope gave the president a copy of his 2015 encyclical calling for urgent... read more May 25, 2017 by


 
2014 Ram 1500 EcoDiesel, Bear Mountain, May 2014

Justice Department sues Fiat Chrysler over diesel emissions (update)

The U.S. Justice Department sued Fiat Chrysler Automobiles yesterday over allegations that diesel engines in its light-duty trucks included equipment to defeat Environmental... read more May 24, 2017 by


 
Mark Webber driving a 2016 Porsche 919 Hybrid in London

Cities lead global push for cleaner, zero-emission cars

Carlos Ghosn, the man behind the Nissan Leaf electric car and now the chairman of the Renault Nissan Alliance, isn't the first to say it. But his recent comment that cities... read more May 23, 2017 by


 
Gas pump

Could California climate-change rules raise gas price enough to backfire?

California has by far the most aggressive climate-change policies in the nation, and the state is a global leader in plans to reduce carbon-dioxide emissions. It's also the... read more May 19, 2017 by


 

 
 

 
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