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Close ✕Antarctic sea ice reaches a record low, a year after the previous one
2023-02 · Recorded · climate
The source states this happened, and its date is not in the future. The word the source used for it is observed.
Antarctic summer minimum extent falls below the previous record set in February 2022, which had itself been the first below two million square kilometres in the satellite era. The significance is that until about 2016 Antarctic sea ice had shown no decline at all, and in some years a slight increase - the two hemispheres had been behaving differently, and then the southern record turned sharply. Whether that is a regime shift or extreme variability in a short record is genuinely unresolved.
- Source
- National Snow and Ice Data Center (NSIDC), University of Colorado Boulder · NSIDC Sea Ice Index, https://nsidc.org/data/seaice_index - daily and monthly Arctic and Antarctic sea-ice extent and concentration from passive-microwave satellite observations
- Standing
- This record: partially verified · publisher: partially verified
- How it arrived
- Editorial — A dated record from the Richseen Atlas editorial corpus, written and cited by a curator. Not captured from anywhere, and not live.
- Where
- At a canonical Atlas object, placed and checked by a curator.
- Subject
- PHENOMENON_SEA_ICE · Antarctica · REGION_SOUTHERN_OCEAN
Sources polled — usgs: newest 2026-09-10 · nws: newest 2026-09-10 · jpl-cneos: states no publication time, last reached 2026-09-10 · Official source connected · Basemap: Natural Earth (public domain) — marks are drawn only from sourced coordinates