emissions

  • 2015 Volkswagen Golf TDI SE

    It has been almost two years since Volkswagen changed the prospects for diesel-powered cars when it admitted to eight years' worth of cheating on emissions tests for its so-called clean diesel vehicles. The effects of the German automaker's diesel scandal are still unfolding today, not only in the United States, but in Europe as well. Another piece in Volkswagen's diesel scandal is expected to progress toward a resolution this morning. DON'T MISS: VW exec pleads not guilty on diesel cheating charges Former Volkswagen executive Oliver Schmidt is expected to plead guilty to charges surrounding...

  • Oil well (photo by John Hill)
    Decline of oil: Bloomberg suggests what it could look like

    Predictions on the future of global energy vary greatly, but many analysts largely believe that peak demand for the oil industry is coming relatively soon. The world's largest oil companies, however, see it differently: they say their business will only continue to grow through the year 2040. Exxon...

  • International Paper Company mill, 1973 [From EPA Documerica series]
    EPA museum may axe climate-change display, add one on coal

    The museum at the Environmental Protection Agency may soon be in for an overhaul to reflect the agenda of the Trump administration. It's no secret Scott Pruitt, current EPA administrator and climate-science denier, has worked to deregulate many of the agency's regulatory efforts to promote fossil...

  • The White House, Washington, D.C.  [Creative Commons license by dcjohn]
    U.S. government climate scientists restricted, sidelined, limited

    Months into Donald Trump's presidency, it is clear the administration has worked diligently to downplay the role of science in setting policy on energy. Some moves to diminish scientists' roles have been more evident than others, but a new report details what has gone on behind the scenes. In...

  • Diesel taxis in London (Image by Flickr user Lars Ploughmann, used under CC license)
    UK to ban diesel, gasoline car sales by 2040; follows France, Norway, Holland bans

    The United Kingdom will follow in the footsteps of some European countries as it announced plans to ban the sale of gasoline- and diesel-powered cars by the year 2040. The initiative closely follows a similar announcement from France, which also declared 2040 as the year it will phase out...

  • 2014 Audi A6 2.0 TDI Ultra
    European commissioner warns against cities' diesel bans, fears market collapse

    The warning came even before last week's plans for updates to 9 million European diesel cars by German luxury makers Audi and Mercedes-Benz were announced. In a letter sent to the transport ministers of European Union countries, EU industry commissioner Elzbieta Bienkowska warned that proposed bans...

  • 2018 Mercedes-Benz CLA-Class

    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 smallest of Mercedes-Benz luxury cars. DON'T MISS: 2014 Mercedes-Benz CLA 250: Gas Mileage Review Of Compact Luxury Sedan The engines won't be seen until 2019 or later in North America, and then only in the CLA compact sedan and perhaps the GLA compact hatchback utility vehicle. But as well-sourced...

  • 2013 Audi TDI range
    Audi, Mercedes now updating European diesels for emissions; more to come?

    Both Mercedes-Benz parent Daimler and Volkswagen Group have approved new plans to retrofit older diesel-powered vehicles with new software at no cost to owners. The largest number of such cars will be in Europe. The news comes amid the latest allegations surrounding German automakers and their...

  • Felix Kramer and his fleet: Nissan LEAF, Chevy Volt, Plug in Prius
    Green Car Glossary: vehicles, emissions, fuels, electric cars, powertrains energy (updated)

    As rules to boost fuel economy and lower carbon emissions in vehicles around the world continue to stiffen, acronyms like EREV, CNG, and MPGe are becoming more and more common. Ever wonder what they all mean? This glossary is your chance to enter a veritable Twilight Zone of terminology--and find...

  • 2014 BMW 328d
    EU investigating diesel collusion among Audi, BMW, Mercedes, Porsche, VW: report

    As numerous political probes over the years have famously shown, once investigators dig into the circumstances around an alleged crime, anything can happen. The September 2015 announcement by the EPA that VW Group engineers had admitted to deliberate cheating on U.S. emission tests of the company's...

  • 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 other pollutants. Commercial trucks log much higher annual mileage than passenger cars, especially the semi tractors that haul...

  • 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 be described with such a phrase. Semi trucks using the latest-generation diesel technology have reached a new...

  • Chrome exhaust pipe

    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 diesel—pose particularly tough emission problems. That's because the exhaust aftertreatment systems have to warm up fully before they cut emissions to the levels required under EU regulations. DON'T MISS: EU cracks down as diesel scandal exposes lax tests country by country The problem has been highlighted by the British consultancy Emission Analytics, which routinely analyzes the data from its various EQUA Index...

  • 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 world have introduced lower emission and higher fuel-efficiency standards for passenger cars, another large contributor to...

  • 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 dispersed low-density suburbs without mass transit, bike paths, or even sidewalks. Europeans, more of whom live in cities and most...

  • 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, climate-science denier Scott Pruitt, has said he isn't "currently" planning to target California's ability to set its own...

  • 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 European drivers thanks to its efficiency and lower carbon dioxide levels. However, mounting research has shown diesel-powered cars...

  • 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" from the mission statement of the EPA's Science and Technology Office, it went largely unnoticed. First posted in December...

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

    Electric cars have no tailpipe emissions when running. But unless they're charged entirely on renewable energy—still statistically unlikely today—there are emissions associated with generating the electricity used to charge their batteries. For several years now, rigorous "wells-to-wheels" analyses of the carbon-dioxide emissions associated with electric-car use have shown it's far lower than that of the average vehicle sold today. DON'T MISS: Different map shows electric cars are cleaner The Union of Concerned Scientists released an updated version of its MPG-equivalencies map...

  • 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 fossil fuels is still the source of most electric power today. The good news is that in most areas of the U.S., the "wells to...

  • 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 true not just in the United States, but elsewhere as well. The European Union is now increasing its efforts to make sure a...

  • President Donald Trump (Photo courtesy Gage Skidmore/Wikimedia Commons)
    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, drastic cuts in fossil-fuel emissions. It is unclear whether the U.S. president will peruse the document. Back at home...

  • 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 Protection Agency emissions tests. First reported as impending last week, the suit alleges that FCA fitted up to eight...

  • 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 are driving the push for electric cars is an important one, because it indicates a prime market for their advantages. The...