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Climate Change Threatens Already Poor Air Quality in California’s Central Valley

Union of Concerned Scientists

JULY 26, 2022

California’s Central Valley consistently experiences the country’s worst air quality, and climate change is poised to make air quality even worse. In a region known for its exceptional agricultural productivity, climate change is quickly amplifying a dangerous type of climate risk in California’s Central Valley: air pollution.

Climate Change

Climate Change Ozone Air Pollution Particle Pollution

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

Union of Concerned Scientists

DECEMBER 1, 2022

California’s leadership on reducing truck pollution has been on full display the past few years, passing critical regulations requiring 90 percent reduction in smog-forming nitrogen oxide (NO X ) emissions from diesel trucks and requiring manufacturers sell an increasing share of electric trucks to move away from fossil fuels altogether.

Nitrogen Oxides

Nitrogen Oxides Clean Air Act Fossil Fuels Ozone

Climate Change Threatens Already Poor Air Quality in California’s Central Valley

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

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