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The amount of carbon dioxide emitted per liter or gallon burned varies by fuel type, since each type of fuel contains a different amount of carbon per gallon or liter. The ratings reflect carbon dioxide (CO 2), nitrous oxide (N 2 O) and methane (CH 4) emissions, weighted to reflect each gas's relative contribution to the greenhouse effect.
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).
Harmful pollutants to the health and the environment include particulates (), hydrocarbons, carbon monoxide, ozone, lead, and various oxides of nitrogen.Although not considered emission pollutants by the original California Air Resources Board (CARB) or U.S. Environmental Protection Agency (EPA) definitions, the most recent common use of the term also includes volatile organic compounds ...
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 ...
The final rule issued by the EPA runs into criticism by Republicans as an EV mandate and ethanol proponents as ignoring benefits of renewable fuels
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 ...
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 ...
Striped: Both safety and emissions testing required. In the United States, vehicle safety inspection and emissions inspection are governed by each state individually. Fifteen states have a periodic (annual or biennial) safety inspection program, while Maryland requires a safety inspection and Alabama requires a VIN inspection on sale or transfer of vehicles which were previously registered in ...