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What’s Happening with California’s Gasoline Supply?

Union of Concerned Scientists

We found that if 10 percent of the gasoline in California in 2030 was replaced with average US gasoline, it would increase particulate matter (PM2.5) These results evaluated 2030, but we also considered other years with qualitatively similar results. emissions by less than 1 percent [iv]. NOx VOCs PM2.5 NOx VOCs PM2.5

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Railroads Are Running Dirty Diesel Trains Through Communities and No One Is Doing Anything About It

Union of Concerned Scientists

However, in the past 25 years, the average emissions from a Class I line-haul locomotive have decreased by just 54 and 55 percent for particulate matter (PM 2.5 ) and nitrogen oxide (NO X ) emissions, respectively, well short of the 95 percent and 92 percent respective reduction required of new line-haul locomotives.

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ACT Delivers Cleaner, Efficient, and Cost-Effective On-Road Freight in a Feasible Package

Union of Concerned Scientists

UCS/S&P Global Mobility 2024 This accelerated transition to cleaner on-road freight is vital to reduce harmful air pollution generated from trucks, given that theyre the largest source of ozone-forming nitrogen oxides (NOx) pollution in the nation and the largest source of lung-damaging fine particulates from vehicles on the road.

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The California Legislature: Where Global Warming is Real and Science Still Matters

Union of Concerned Scientists

Cleaner cars, cleaner air Our Cleaner Cars, Cleaner Air Report showed that while pre-2004 cars make up fewer than 20% of the cars on the road, they are responsible for the majority of tailpipe pollution because they produce higher amounts of lung-damaging particulate pollution and contribute significantly more smog-forming nitrogen oxide emissions.

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Congress Considers First-Ever Purchase Incentive for Commercial EVs

Union of Concerned Scientists

Last week, Senators Schumer and Manchin announced a compromise on a reconciliation bill, called the Inflation Reduction Act of 2022 , that includes significant climate and air quality progress and a goal to reduce greenhouse gas emissions nationwide by 40 percent by 2030. But this bill is a big step forward.

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Newsom Can Continue His Climate Leadership by Signing These Three Bills 

Union of Concerned Scientists

The bill responds to research conducted by UCS and The Greenlining Institute showing that while pre-2004 vehicles account for fewer than 20% of the cars on California’s roads, they emit nearly 75% of the smog-forming nitrogen oxides emissions.

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Diesel is the Reason for the Sneezin’: Cleaner Holiday Deliveries are on the Horizon

Union of Concerned Scientists

But while greenhouse gas emissions may be reduced, a delivery fulfilled by a diesel-burning truck may lead to increases in emissions of smog-forming nitrogen oxides and lung-damaging particulate matter.