2019 Air Pollution Ozone 
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.
Union of Concerned Scientists
SEPTEMBER 26, 2024
Since global and local pollutants are often byproducts of the same activities, mitigation policies for global warming emissions have the potential to simultaneously mitigate local air pollution 2. One good example of the nexus between global warming and local pollution is ground-level ozone. have a diameter of 2.5
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Union of Concerned Scientists
SEPTEMBER 17, 2024
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.
Union of Concerned Scientists
APRIL 27, 2023
But in reality the proposed emission targets were achieved 11 years early in 2019—without the plan ever even taking effect. Research has shown that the country’s remaining coal plants are responsible for 3,800 premature deaths per year, based on 2019 data.
Union of Concerned Scientists
MARCH 23, 2023
NO x also contributes to the formation of ozone (or “smog”), another toxic pollutant. pollution, which are particles with diameters of 2.5 In 2019, air pollution more broadly was responsible for about 6.7 micrometers or less. million deaths globally.
Academy of Natural Sciences
SEPTEMBER 1, 2021
There are many human-made sources of emissions, and on-road motor vehicles, such as cars, are a huge driving factor in air pollution. Motor vehicle exhaust is one big source of ground-level ozone or smog, fine particulate matter, carbon monoxide and nitrogen dioxide. Don’t own a bicycle or nervous about investing in one?
Union of Concerned Scientists
APRIL 20, 2023
There arecurrently carbon standards in place for new power plants , which were set back in 2015; however, there are no standards for existing plants as neither the 2015 Clean Power Plan nor the 2019 Affordable Clean Energy Rule —both of which targeted existing facilities—remain in place.
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