The U.S. Supreme Court on Thursday imposed limits on the federal government¡¯s authority to issue sweeping regulations to reduce carbon emissions from power plants in a ruling that undermines U.S. President Joe Biden¡¯s plans to tackle climate change and could constrain various agencies on other issues.

The court¡¯s 6-3 ruling constrained the authority of the Environmental Protection Agency (EPA) to regulate greenhouse gas emissions from existing coal- and gas-fired power plants under the landmark Clean Air Act. Biden¡¯s administration is currently working on new regulations.

The court¡¯s six conservatives were in the majority in the decision authored by Chief Justice John Roberts, with the three liberals dissenting.