Business Groups File Emergency Application with Supreme Court to Block California Climate Laws

The US Chamber of Commerce and allied business groups filed an emergency application with the US Supreme Court on November 10, 2025, seeking to block enforcement of California's SB 253 and SB 261 while their Ninth Circuit appeal was pending. The filing argued that companies faced irreparable harm from being compelled to publish climate-related financial risk reports and greenhouse gas emissions data. The Ninth Circuit had declined to stay enforcement, prompting the escalation to the Supreme Court.