Supplemental environmental projects (SEPs) have received a growing amount of attention in recent years, from the Donald Trump Administration banning their use in settlements, to regulation and guidance from the Joseph Biden Administration reversing the ban, to legislative proposals prohibiting them altogether. This Article examines SEPs’ legality under existing law, focusing on claims that they violate the Miscellaneous Receipts Act and the Antideficiency Act. It begins with a brief history of SEPs’ policy evolution and the limitations on the U.S. Environmental Protection Agency’s and U.S.

Methane is estimated to be responsible for one-third of the global rise in temperatures from greenhouse gases; it is shorter-lived but much more potent than carbon dioxide. The United States and the European Union (E.U.) launched the Global Methane Pledge at the 2021 United Nations Climate Change Conference (COP26). At COP28’s Global Methane Pledge Ministerial last December, new strategies were announced, including the E.U.’s first-ever adoption of methane regulations and a final rule by the U.S. Environmental Protection Agency to reduce methane from the oil and gas industry.

Over the last three decades, numerous studies have concluded that African American, Hispanic, Native American, Alaska Native, Native Hawaiian, and working-class White communities are disproportionately exposed to environmental harms and risks. More recent studies have concluded that although the adverse effects of climate change are being felt throughout the United States, they are not evenly distributed. This Article explores how several states have initiated climate justice litigation to address this issue.