Union of Concerned Scientists

JULY 3, 2022

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.

Climate Change 279

Climate Change Fossil Fuels Carbon Emissions Nitrogen Oxides 279

Union of Concerned Scientists

JUNE 3, 2024

By 2050, the climate benefits from compliance with ACF will translate to a reduction of 146,000 tons of nitrogen oxides, nearly 7,000 tons of fine particulate matter, and 327 million metric tons of carbon dioxide. The ACF is estimated to significantly reduce pollution from the statewide commercial truck and bus fleet.

Electricity 130

Electricity Nitrogen Oxides Air Pollution 2023 130

Union of Concerned Scientists

OCTOBER 4, 2023

leader in cleaning up the light duty fleet quietly released its own proposal in August: the Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) has proposed to improve fuel economy of passenger cars and trucks steadily from 2027 through 2032 and heavy-duty pickups and vans from 2030 to 2035.

Electricity 295

Electricity Clean Air Act Carbon Dioxide 2027 295

Union of Concerned Scientists

MARCH 25, 2025

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.

Fossil Fuels 249

Fossil Fuels Clean Energy Nitrogen Oxides Renewable Energy 249

Union of Concerned Scientists

JUNE 14, 2023

The report also found that 173 coal plants are scheduled to close by 2030—54 percent of the fleet—and another 55 by 2040. Meanwhile, between 2012 and 2022, installed wind and solar power more than tripled , according to American Clean Power. Last year, wind generated 10.2 percent of US electricity and utility-scale solar generated 3.4

Fossil Fuels 262

Fossil Fuels Carbon Emissions Nitrogen Oxides Clean Air Act 262