Recent observational data from agencies including Copernicus and NOAA confirm May 2026 global surface temperatures ranked among the second-warmest on record, with anomalies near 1.1–1.4°C above pre-industrial baselines amid persistent long-term warming and a developing El Niño event. This alignment with climate model ensembles and historical trends underpins the overwhelming market-implied odds for the 1.10–1.14°C bracket. ENSO-neutral conditions transitioning toward El Niño, combined with elevated sea surface temperatures, provide the key causal drivers. Minor revisions in final dataset processing or regional weighting could theoretically shift outcomes, though current evidence indicates limited scope for such adjustments before full verification.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMay 2026 Temperature Increase (ºC)
1.10–1.14ºC 100.0%
<1.10ºC <1%
1.15–1.19ºC <1%
1.20–1.24ºC <1%
$201,757 Vol.
$201,757 Vol.
<1.10ºC
No
1.10–1.14ºC
Yes
1.15–1.19ºC
No
1.20–1.24ºC
No
1.25–1.29ºC
No
>1.29ºC
No
1.10–1.14ºC 100.0%
<1.10ºC <1%
1.15–1.19ºC <1%
1.20–1.24ºC <1%
$201,757 Vol.
$201,757 Vol.
<1.10ºC
No
1.10–1.14ºC
Yes
1.15–1.19ºC
No
1.20–1.24ºC
No
1.25–1.29ºC
No
>1.29ºC
No
An anomaly within a named bracket for May 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for May 2026 is later revised.
The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "May" in the row "2026" (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 2026 is provided by NASA by July 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.
Market Opened: Apr 27, 2026, 4:35 PM ET
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
An anomaly within a named bracket for May 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for May 2026 is later revised.
The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "May" in the row "2026" (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 2026 is provided by NASA by July 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent observational data from agencies including Copernicus and NOAA confirm May 2026 global surface temperatures ranked among the second-warmest on record, with anomalies near 1.1–1.4°C above pre-industrial baselines amid persistent long-term warming and a developing El Niño event. This alignment with climate model ensembles and historical trends underpins the overwhelming market-implied odds for the 1.10–1.14°C bracket. ENSO-neutral conditions transitioning toward El Niño, combined with elevated sea surface temperatures, provide the key causal drivers. Minor revisions in final dataset processing or regional weighting could theoretically shift outcomes, though current evidence indicates limited scope for such adjustments before full verification.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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