Climate change: In which month will the 30-year global warming trend first reach 1.40°C?
4
100Ṁ368
Aug 10
25%
December 2025
21%
January 2026
20%
February 2026
18%
November 2025
14%
July 2025
10%
August 2025
10%
September 2025
8%
October 2025
8%
March 2026
6%
June 2025

This market predicts the month in which the 30-year global warming trend will first reach 1.40°C — or higher — above pre-industrial levels. The 30-year trend refers to the average global temperature increase calculated over a rolling 30-year period, compared to baseline temperatures recorded before industrialization (1850–1900).

The market will resolve based on data provided by Copernicus, the European Union’s Earth Observation Programme. The relevant data can be found on the website of the Copernicus Climate Change Service, specifically in the Global Warming chart located between the "News" and "Case Studies" sections. At the time of market creation the latest data on the chart displayed 1.36°C for October 2024.

The resolution date is set to align with the next answer scheduled for resolution (currently June 2025). It will adjust dynamically to always reflect the next scheduled answer.

For comparison:

  • Update 2025-03-09 (PST) (AI summary of creator comment): Data Source Update:

    • New Data Link: The resolution data will now be obtained from the Application section at this link.

    • Note: The main website’s Global Warming chart is not updated.

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The main website is not updated, but I have now learned that the data for resolution can be found here, clicking on ‘Application’: 

https://apps.climate.copernicus.eu/global-temperature-trend-monitor/?tab=plot

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