Car emissions are a major source of pollution. Cars and trucks emit twenty percent of all greenhouse gases emitted in the United States[1], which is the second largest greenhouse gas emitter in the world.
Do cars cause the most pollution?
Greenhouse gas (GHG) emissions from transportation account for about 27 percent of total U.S. greenhouse gas emissions, making it the largest contributor of U.S. GHG emissions.
What is the number 1 source of pollution?
Mobile sources account for more than half of all the air pollution in the United States and the primary mobile source of air pollution is the automobile, according to the Environmental Protection Agency.
What are the 3 largest sources of emissions?
Notes. CO2 accounts for about 76 percent of total greenhouse gas emissions. Methane, primarily from agriculture, contributes 16 percent of greenhouse gas emissions and nitrous oxide, mostly from industry and agriculture, contributes 6 percent to global emissions.
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[PDF] Auto$mart - Learn the facts: Emissions from your vehicle
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[PDF] The Cost and Effectiveness of Policies to Reduce Vehicle Emissions
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