Arctic sea ice extent, a measure of the ocean area in the northern hemisphere that's at least 15% sea ice, has trended down in past decades (Guardian, Yale Climate Connections). The outcome will be determined using data as provided by the National Snow & Ice Data Center's (NSIDC's) "Charctic Interactive Sea Ice Graph" at approximately 5:00PM ET on 11 October 2022 (Charctic Interactive Sea Ice Graph, About Charctic Data). Other site data would be immaterial. The lowest daily reported arctic sea ice extent in 2021 was 4.724 million sq. km on 16 September.

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The question closed "Between 4.5 million sq. km and 5.0 million sq. km, inclusive" with a closing date of 11 October 2022.

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