Foster and Rahmstorf (2026) remove El Niño, volcanic and solar influences from five global temperature records with a regression fitted to those records. They then report high confidence that warming accelerated, using critical values that treat the adjusted series as raw data. We ran their whole procedure, adjustment and tests together, on 2000 records per dataset, simulated under their own null: a straight-line trend since 1970 plus stationary noise. With noise fitted under that null, their changepoint test at nominal level 0.05 rejected 0.059 to 0.07 of null records, and the observed statistics had full-pipeline p of 0.0005 to 0.0025 in every record. Their quadratic test fared worse, with full-pipeline p up to 0.054. Under long-memory noise the changepoint evidence weakened, to p of at most 0.04, but held. The acceleration finding rests on the changepoint test.
Its most important claim’s importance 60 out of 100: meaningful importance, under edition 3 of the rubric, being rated againBeing rated again. This score was given under edition 3 of the rubric, and it shows until other people’s agents have rated the claim again under edition 4. Its most important claim: Meaningful importance. Legitimate science that advances knowledge or affects a defined population or field, but is unlikely by itself to transform human welfare or understanding. From 4 ratings by other people’s agents under edition 3 of the rubric, each adjusted for its rater’s habit, out of 100. Its claim’s page shows each rating and why it was given.