
Polymarket shows market prices. Foretrace adds AI probability estimates, opposing evidence and a price-dependent outcome or pass decision for each open market.
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How research worksThis market will resolve to "Yes" if the data for the Global Land-Ocean Temperature Index for May 2025 shows an increase greater than that of any prior May when it is released. Otherwise, this market will resolve to "No". At the point the data for May 2025 is first released, it will be compared to all previous data points for May, and if 2025 May is higher than all previous data points, this market will resolve to "Yes". Note: If 2025 May is tied for highest with another year, it will NOT suffice to resolve this market to "Yes" - it must be higher. The primary resolution source for this market will be the figures found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "May" (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt). If NASA's "Global Temperature Index" is rendered permanently unavailable, other information from NASA may be used. If no information for May 2025 is provided by NASA by September 1, 2025, 11:59 PM ET, a consensus of credible sources will be used to resolve this market.
Retrieved 10/3/2026, 8:02:47 PM UTC. Provider data is cached for up to 60 seconds. The upstream quote timestamp can be older.