Remove 2026 Remove Biofuels Remove Nitrogen Oxides
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Ask a Scientist: UCS Transportation Program Adds Equitable Mobility to its Portfolio

Union of Concerned Scientists

In 1963, a typical car—which ran on leaded gasoline without pollution control devices— emitted 520 pounds of hydrocarbons, 1,700 pounds of carbon monoxide, and 90 pounds of nitrogen oxide every 10,000 miles traveled. Even so, cars and trucks are still making us sick—and killing us.

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Reading the Tea Leaves: Biden’s and California’s Vehicle Regs at the D.C. Circuit

Legal Planet

The transportation sector is also a substantial source of nitrogen oxides and particulates, both of which are dangerous to human health. Transportation is now the source of 28% of U.S. greenhouse gas emissions, more than the electric power sector. The oral argument centered on these arguments.