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Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Union of Concerned Scientists

California has a longstanding leadership role on transportation pollution, and the Clean Air Act grants the state the right to set strong vehicle emissions standards. Please authorize these rules and allow us to begin transitioning to cleaner air as soon as possible. Washington.

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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. Soon thereafter, it began extolling the virtues of battery electric vehicles , which it continues to do today.

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State Air Regulations Can Go Above and Beyond National Standards 

Legal Planet

States and local air quality regulators have the legal authority to set particulate matter (PM), ozone, and nitrogen oxides (NOx) emissions standards and adopt regulations for these pollutants when they are already in attainment of the national ambient air quality standards ( NAAQS ) set by the U.S.

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Unraveling LA’s Hydrogen Combustion Experiment

Legal Planet

Critically, and as we’ll discuss in greater depth shortly, hydrogen combustion (as opposed to its use in fuel cells) also leads to greater emissions of nitrogen oxides (NOx), a toxic group of pollutants regulated under the Clean Air Act.

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EPA’s Cross-State Air Pollution Rule Will Have A Dramatic Impact on Texas and Louisiana

The Energy Law Blog

By: Lesley Foxhall Pietras On August 8, 2011, the Environmental Protection Agency (EPA) published a far-reaching Clean Air Act rule intended to address the interstate transport of sulfur dioxide (SO2) and nitrogen oxides (NOx) from upwind to downwind states. See 76 Fed. 48208 (Aug.

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Biden’s Proposed Power Plant Rule is a Solid First Step

Legal Planet

EPA last year, the new draft rule does not determine emission limits based on “generation shifting,” or the closure of fossil fuel-powered plants in favor of cleaner sources of electricity. Still, the fact that this draft rule follows the passage of the Inflation Reduction Act of 2022 (“IRA”) has enabled the EPA to be relatively stringent.

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The Supreme Court’s Latest Decision Is a Blow to Stopping Climate Change

Union of Concerned Scientists

Had the court ruled fully in favor of the EPA— or not taken the case at all —a much more meaningful dent in power plant carbon emissions would be within reach, while also delivering much greater reductions in other dangerous co-pollutants from burning fossil fuels such as particulate matter, mercury, nitrogen oxides and sulfur dioxide.