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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. Cars and trucks are a lot cleaner than when I was growing up. I recently caught up with Kevin X.

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Testimony of Michael D. Shellenberger Founder and President, Environmental Progress For the House Oversight Committee August 5, 2020

Environmental Progress

Carbon emissions are thus following the same trajectory as other air pollutants. As a result of cleaner-burning coal, the transition to natural gas, cleaner vehicles, and other technological changes, developed nations have seen major improvements in air quality. In May, a few weeks after calling for a phase-out of nuclear energy, Rep.

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