D.C. Circuit Overturns Trump Administration Power Plant Rule In June 2019, the EPA adopted several rules that repealed the 2015 Clean Power Plan and implemented the Affordable Clean Energy ("ACE") Rule. On January 19, 2021, in a per curiam opinion, the D.C. Circuit vacated the ACE Rule. French Courts Ruled on Major Climate Lawsuits Against the State Two lawsuits filed against the French State recently prompted French administrative courts to clarify the extent of France's obligations to adopt measures to comply with its greenhouse gas emission reduction targets. UK Supreme Court Rules in Favor of Heathrow Airport Ltd, Despite UK’s 2015 Paris Agreement Commitments