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.

Clean Air Act 55

Clean Air Act Air Pollution Climate Change Regulations 55

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. In Mexichem , the D.C.

2020 40

2020 Endangered Species Act Climate Change Greenhouse 40

ESA

JANUARY 31, 2022

This body will review the EPA’s scientific review of current ozone pollution standards. In 2019, the Trump administration opted to keep ozone pollution standards the same. This proposed rule contrasts the Fish and Wildlife Service’s 2004 and 2009 determinations that the species did not warrant protections.

2022 52

2022 Climate Change Clean Water Act Ozone 52