2020 Clean Water Act Greenhouse Ozone 
Union of Concerned Scientists
DECEMBER 12, 2023
The Cuyahoga fire, along with a major oil spill off the coast of Santa Barbara that same year, galvanized national attention and led to the first Earth Day, a slew of new air and water protection laws, and the creation of new federal departments to administer them, including the Environmental Protection Agency (EPA).
Columbia Climate Law
MAY 8, 2020
EPA of a 2015 rule barring replacement of ozone-depleting substances with hydrofluorocarbons (HFCs), which are powerful greenhouse gases. Circuit vacated the 2015 rule to the extent that it prohibited continued use of HFCs by companies that previously switched to HFCs from an ozone-depleting substance. May 1, 2020).
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Law Columbia
SEPTEMBER 10, 2021
Circuit found that FERC failed to address the significance of a National Environmental Policy Act (NEPA) regulation that the petitioners argued required use of the social cost of carbon or another methodology to assess the impacts of the projects’ greenhouse gas emissions. Vecinos para el Bienestar de la Comunidad Costera v.
ESA
JUNE 14, 2021
CEQ is also planning to revive guidance on how to factor greenhouse gas emissions and climate change into NEPA reviews, after Obama-era guidance was yanked by the Trump administration. Odds and ends: EPA says it will reconsider a 2020 Trump regulation known as the Major MACT to Area, or MM2A, rule. 21, 2020 ).
ESA
MAY 17, 2021
Sean Casten (D-IL) ‘s Climate Risk Disclosure Act ( H.R. This bill requires publicly listed companies to disclose their greenhouse gas emissions and how climate change will impact their businesses to the Securities and Exchange Commission. The House Financial Services Committee approved Rep. 2570 ) along a party-line vote.
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