2025 Air Pollution Environmental Protection Ozone 
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 A recent study found that more than 99 percent of the global population is exposed to unsafe levels of PM 2.5
HumanNature
MARCH 31, 2021
Outdoor air pollution accounts for approximately 3.7 – 4.8 Other amazing strides have been made in targeting black carbon emissions such as, the Environmental Protection Agency’s (EPA) Black Carbon Diesel Initiative in the Russian Arctic. AMAP Assessment 2015: Black Carbon and Ozone as Arctic Climate Forcers.”
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Columbia Climate Law
DECEMBER 2, 2019
On Friday, November 22, the Sabin Center submitted comments opposing an Environmental Protection Agency (“EPA”) proposal to rescind regulations limiting methane emissions from new oil and natural gas facilities (the “Methane New Source Performance Standards” or “Methane NSPS”). By Romany Webb.
Law Columbia
MARCH 13, 2023
EPA , the United States Environmental Protection Agency (EPA) has regulated greenhouse gas (GHG) emissions from motor vehicles under the Clean Air Act. While the Clean Air Act (CAA) has been amended multiple times since 1970, this basic requirement has remained untouched. billion tons of carbon dioxide emissions by 2050.
ESA
JUNE 14, 2021
The Biden administration laid out its timeline for rolling back major Trump environmental rules, but acknowledged that the process of enacting more protective regulations on climate and air pollution and drinking water will take years — if they can estimate the timeline at all. 1816 & H.R.
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