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New Analysis Shows Public Health Impacts of Proposed Gas Plants in Wisconsin 

Union of Concerned Scientists

Costly and Inequitable In addition to emitting greenhouse gases, gas power plants also pollute the air with nitrogen oxides, sulfur dioxide, particulate matter, and volatile organic compounds.

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Congress Considers First-Ever Purchase Incentive for Commercial EVs

Union of Concerned Scientists

Despite making up only about 10 percent of vehicles on the road, heavy-duty vehicles are responsible for 28 percent of greenhouse gas emissions, 45 percent of nitrogen oxides, and 57 percent of fine particulate pollution from vehicles in the U.S. But this bill is a big step forward.

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The State of the Air in 2024? Not Great

Union of Concerned Scientists

The American Lung Association’s State of the Air report measures three of the major types of pollutants in the San Joaquin Valley: long-term particle matter, short-term particle matter, and ozone. come from reactions of industrial pollutants (nitrogen oxides and sulfur oxides) with sunlight and unfinished fuel combustion.

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Why the Bay Area’s Zero-Emission Appliance Rule is a Big Deal

Legal Planet

The Threats of Gas Appliances Every day, domestic gas-powered building appliances emit 65 tons of toxic and highly reactive gases called nitrogen oxides (NOx) per day. Additionally, NOx react with other chemicals in the air to create other harmful pollutants, like fine particulate matter and ozone.

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What Exactly is Ozone? The Good, the Bad & the Ugly

Breezometer

Our ozone layer serves as a lifesaving UV barrier for planet earth, functioning to absorb most of the sun’s ultraviolet radiation. At the same time, ground-level ozone pollution is extremely harmful to human health. As the complexity of ozone pollution is often misunderstood, let's take a closer look at this particular pollutant.

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

Union of Concerned Scientists

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.

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Delivery Vans are Going Electric: Where and Why

Union of Concerned Scientists

Medium- and heavy-duty vehicles (MHDVs), like the big rigs on our highways and the vans that deliver our packages, make up just over 1 in 10 of the vehicles on our roads, but are responsible for over half of ozone-forming nitrogen oxide pollution and lung-damaging fine particulate pollution from on-road vehicles.