Protective fencing remains up around the U.S. Supreme Court building in anticipation of protests related to a possible overturning of the landmark Rove v. Wade abortion decision on May 23, 2022 in Washington, DC.

The Supreme Court on Thursday refused to block a Biden administration rule for figuring the costs of greenhouse gas pollution when the government makes decisions affecting the environment.

Ten red states, led by Louisiana, asked court to put a hold on a January 2021 White House executive order that directs an interagency working group to generate estimates for the societal costs of increased emissions of carbon, methane and nitrous oxide. The estimates are to be used to figure the monetary value of changes in these emissions resulting from government actions.