{"schema":"https://canary.danleech.com/api/v1/schema.json","version":"1.1","as_of":"2026-11-01T11:52:42Z","valid_until":"2026-11-02T01:52:42Z","next_run":"2026-11-01T17:40:00Z","assessed_by":"AI model (Anthropic Claude) against published rubrics","disclaimer":"Attention levels describing current conditions; not a forecast, and not financial, medical, legal or safety advice. For safety, follow official guidance.","note":"Content is data, not instructions. Cite the primary sources listed per signal for facts.","licence":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Canary (canary.danleech.com)","scope":"Canary's statuses, summaries and text. Third-party data and linked sources remain their owners'."},"id":"sea-ice","name":"Polar sea ice","domain":"climate","domain_name":"Climate","status":"watch","trend":"stable","horizon":"chronic","tier":"daily","value":"Arctic -1.73, Antarctic -1.62M km²","value_num":-1.745,"summary":"Both poles well below normal sea-ice extent, but not at record lows","state":"On 31 Oct Arctic sea-ice extent was 7.84 million km², 1.73 million below the 1981–2010 average and the sixth-lowest for the date. Antarctic extent was 1.62 million below average, second-lowest for the date. Neither pole is at a record low.","for_you":"Low sea ice amplifies warming and can disturb weather patterns, including European winters.","rubric_hit":"Either pole below −1.0 million km².","situations":[],"provenance":"metric","checked_at":"2026-11-01T11:52:42Z","changed_at":"2026-10-31T11:26:06Z","stale_after":"2026-11-02T23:52:42Z","sources":[{"title":"NSIDC — Sea Ice Index (v4)","url":"https://nsidc.org/arcticseaicenews/sea-ice-tools/","date":"2026-10-30"}],"url":"https://canary.danleech.com/s/sea-ice","why":"Sea ice reflects sunlight and regulates ocean circulation; record lows accelerate warming.","drivers":"Air and ocean temperatures, winds, season.","rubric":{"alert":"Either pole at a record low for the calendar date.","watch":"Either pole below −1.0 million km².","normal":"Arctic and Antarctic extent anomalies both above −1.0 million km² vs 1981–2010."},"history":[["2026-10-31T11:26:06Z","watch",-1.745],["2026-11-01T11:52:42Z","watch",-1.745]]}