A body advising US judges has deleted its chapter on climate change from a reference manual following complaints from Republican state attorneys general. The Federal Judicial Center, established to aid judges with scientific topics, removed the entire chapter after critics argued it presented human-driven climate change as settled fact. The move came after a letter from GOP attorneys general objected to the manual's stance on human influence on climate, demanding the chapter's removal rather than just revisions.

The original fourth edition, prepared with Columbia University authors, explicitly stated human activities had 'unequivocally warmed the climate' and researchers were 'virtually certain' about ocean acidification. The attorneys general also disputed the manual's characterization of the IPCC as an 'authoritative science body'. While the manual's foreword by Supreme Court Justice Elana Kagan still mentions the chapter, it no longer exists in the current version.