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  2. United States vehicle emission standards - Wikipedia

    en.wikipedia.org/wiki/United_States_vehicle...

    A second round of California standards, known as Low Emission Vehicle II, is timed to coordinate with the Tier 2 rollout. The PZEV and AT-PZEV ratings are for vehicles which achieve a SULEV II rating and also have systems to eliminate evaporative emissions from the fuel system and which have 150,000-mile/15-year warranties on emission-control ...

  3. Health and environmental impact of transport - Wikipedia

    en.wikipedia.org/wiki/Health_and_environmental...

    Cycling has a low carbon-emission and low environmental footprint. A European study of thousands of urban dwellers found that daily mobility-related CO 2 emissions were 3.2 kg (7.1 lb) of CO 2 per person, with car travel contributing 70% and cycling 1% (including the entire lifecycle of vehicles and fuels).

  4. Regulation of greenhouse gases under the Clean Air Act

    en.wikipedia.org/wiki/Regulation_of_greenhouse...

    The petitioners argued that carbon dioxide (CO 2), methane (CH 4), nitrous oxide (N 2 O), and hydrofluorocarbons meet the definition of an air pollutant under section 302(g) of the Act, and that statements made by the EPA, other federal agencies, and the United Nations Intergovernmental Panel on Climate Change (IPCC) amounted to a finding that ...

  5. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    Emission standards are the legal requirements governing air pollutants released into the atmosphere. Emission standards set quantitative limits on the permissible amount of specific air pollutants that may be released from specific sources over specific timeframes. They are generally designed to achieve air quality standards and to protect ...

  6. Effects of cars - Wikipedia

    en.wikipedia.org/wiki/Effects_of_cars

    About 16% of manmade carbon dioxide is from road transport, [17] mostly passenger vehicles. [18] Gasoline cars with less than two passengers produce more carbon dioxide per passenger kilometer than any other form of land transport. [19] The changing speed of a vehicle is a factor when considering the measurement of greenhouse gas emissions ...

  7. New emission rules for cars will start slow but grow rapidly ...

    www.aol.com/emission-rules-cars-start-slow...

    A new emissions rule for cars, trucks and vans sold in the United States from 2027 to 2032 will phase reductions in more slowly to allow charging infrastructure and low-carbon emissions vehicles ...

  8. EPA issues new auto rules aimed at cutting carbon emissions ...

    www.aol.com/news/epa-issues-rules-aimed-cutting...

    The EPA rule applies to model years 2027 to 2032 and will significantly reduce emissions of planet-warming greenhouse gases, as well as other air pollution such as nitrogen oxides and particulate ...

  9. Biden adopts new emissions rules for US cars, gives ... - AOL

    www.aol.com/biden-adopts-emissions-rules-us...

    The Biden administration on Wednesday finalized tough new greenhouse gas standards for cars sold in the U.S., but gave automakers worried that they might be too strict to comply with in the near ...