United States of America, Amicus Curiae
The United States has filed an amicus brief in this case because it involves issues of federal law. The following is excerpted from the Amicus Curiae Brief for Petitioners as submitted to the U.S. Supreme Court on May 21, 2026. The Constitution precludes Boulder’s state-law claims. Petitioners engage in the worldwide production, promotion and sale of fossil fuels. Boulder’s claims seek to hold petitioners liable for their global activities — most of which occurred outside Colorado and, indeed, the United States — on the theory that they caused a global problem (climate change) affecting the entire planet (including Boulder). To…
