United States: Climate Change

The EPA recently published its heavily anticipated proposal to revoke its 2009 determination under section 202(a) of the Clean Air Act that GHG "cause, or contribute to, air pollution which may reasonably be anticipated to endanger public health or welfare."

On July 23, 2025, the ICJ issued a landmark advisory opinion, holding that nation-states have obligations under international law to mitigate GHG emissions, adapt to the effects of climate change and cooperate in good faith with one another ...

A Court of Appeal held that a provision in the County of Amador's checklist for an encroachment permit requiring "[o]ther information as may be required" violated the Permit Streamlining Act. Old Golden Oaks LLC v. County of Amador, 111 Cal.App.5th 794 (2025)...

The proposed rule would rescind the Endangerment Finding, which provided EPA the basis, for example, for regulating GHG emissions from new motor vehicles and engines.

On August 1, 2025, the U.S. Environmental Protection Agency issued a proposed rule to reconsider the 2009 Greenhouse Gas Endangerment Finding and proposed to repeal all GHG emission standards for light-duty, medium-duty, and heavy-duty vehicles and engines promulgated under Section 202(a) of the Clean Air Act.

On March 29, 2023, the United Nations General Assembly asked the International Court of Justice to issue an advisory opinion on states' obligations under international law relating to climate change.

On June 30, 2025, the Federal Energy Regulatory Commission (FERC) and U.S. Department of Energy (DOE) issued updated National Environmental Policy Act (NEPA)...

Welcome to Edition 33 of P2N0 covering the drive to avoid, reduce and remove greenhouse gas (GHG) emissions to progress to net-zero GHG emissions (NZE).

The Securities & Exchange Commission (SEC) recently made certain announcements that reflect the current administration's reduced emphasis on climate-related financial regulation.