Carbon Emissions Clean Air Act Climate Change 
Union of Concerned Scientists
JULY 3, 2022
is a serious blow to the EPA’s ability to fight climate change—and could have dangerous repercussions beyond this case. The timing of the decision feels especially harsh, as the nation is in the throes of the “ Danger Season ” for hazards such as heat waves, drought, wildfires and hurricanes, all worsened by climate change.
Legal Planet
MARCH 13, 2025
Opponents will undoubtedly argue that such state-based initiatives conflict with federal law.
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Legal Planet
APRIL 3, 2023
Social Cost of Carbon D. Climate science F. Climate justice II. EPA regulation of greenhouse gas emissions under the Clean Air Act (CAA) A. Standards for existing stationary carbon sources (focused on power plants to date). Standards for emissions from new vehicles. Co-benefits E.
Union of Concerned Scientists
JULY 1, 2022
Though the case caught fewer headlines, it, too, threatened Earth-shifting implications all its own by thrusting into question a critical EPA lever for addressing climate change. EPA did not revoke EPA’s underlying authority to regulate greenhouse gas emissions under the Clean Air Act.
Legal Planet
AUGUST 26, 2021
The case involved the lynchpin of the Clean Air Act, EPA’s power to set national air quality standards. It was the first case in which the Court was confronted with the issue of climate change. The Court then held that greenhouse gases are covered by the Clean Air Act as a type of air pollutant.
Union of Concerned Scientists
APRIL 20, 2023
Multiple lines of analysis make clear that regardless of how cheap wind and solar power get, without directly addressing pollution from coal and gas plants, the country’s clean energy transition will not happen fast enough. Section 111 of the Clean Air Act constrains how EPA sets standards—but gives states wide latitude in implementation.
Legal Planet
SEPTEMBER 6, 2022
The possibility of snagging some of this funding may also help nudge some lagging states to think seriously about cutting carbon emissions. Under the Clean Air Act, California has the unique ability to set its own standards for tailpipe emissions from new vehicles, including greenhouse gases.
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