Republican AGs want climate science removed from judicial manual

By Lesley Clark | 01/30/2026 06:28 AM EST

The attorneys general argue the new section in the reference manual “would be the final nail in the coffin of American-produced energy.”

West Virginia Attorney General John McCuskey stands outside the Supreme Court.

West Virginia Attorney General John "JB" McCuskey is leading a coalition of 27 Republicans attorneys general calling for the removal of a new climate science chapter of the "Reference Manual on Scientific Evidence." Nikhinson/AP

A coalition of Republican attorneys general is asking the federal court system’s education and research arm to strike the climate science section of a new reference manual for judges.

The letter Thursday to the Federal Judicial Center, which is chaired by Supreme Court Chief Justice John Roberts, marks an escalation in Republican efforts to thwart a raft of climate lawsuits that the oil and gas industry has warned could cost it billions of dollars.

The new climate science chapter of the “Reference Manual on Scientific Evidence” is “absolutely biased and would tip the scales in favor of left-leaning policies that would be the final nail in the coffin of American-produced energy,” said West Virginia Attorney General John “JB” McCuskey, who is leading the coalition of 27 attorneys general.

Advertisement

McCuskey charged that the chapter was written by authors “connected to university climate studies programs that promote legal warfare against states and energy producers to push their left leaning political agendas.”

GET FULL ACCESS