References 265% CONFIDENCEOverall confidence: 65%How well the pin's source and references back up its dates.Weighted average of how firmly 2 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

• [1]50%
  ipcc.ch/report/special-report-on-climate-change-and-cities

  ipcc.ch· Posted Sep 21, 2026· Starts Mar 31, 2027 ✓· 50% of score

  The IPCC^[2] reports listing gives the month only — "Special Report Special Report on Climate Change and Cities March 2027" — so the pin sits on the last day of that month, as a month-only date does.

• [2]95%
  Reports - IPCC

  ipcc.ch· Added Sep 21, 2026· 50% of score

  The IPCC's^[1] own reports index, which is where the March 2027 date for the cities special report is published.

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