Back in August, we wrote about a federal court’s refusal to issue a preliminary injunction that would have blocked California’s new climate disclosure statutes— SB 253 , requiring large companies to disclose greenhouse gas emissions, and SB 261 , requiring disclosure of climate-related financial risks—while a First Amendment challenge brought by the U.S. Chamber of Commerce and other business groups moved forward.

Since then, the litigation has advanced. Below is a summary of the most recent developments, their implications, and what to watch for next.

Key Developments

Appeal Filed : On August 20, 2025 , the plaintiffs filed a notice of appeal with the Ninth Circuit Court of Appeals, challenging the district court's denial of preliminary relief.

Renewed Injunction Request Deni

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