The question resolves based on the Antarctic Sea Ice Extent reported by the National Snow & Ice Data Center.
The question resolves Yes if the Antarctic Sea Ice Extent is less on every single day from September 1st, 2023 to September 30th, 2023 compared to the same dates in all years since satellite tracking started in 1979.
The question immediately resolves No if the extent of Antarctic Sea Ice for any date between September 1, 2023 and September 30, 2023 exceeds the extent for the same day in any year between 1979 and 2022.
Fine Print
Forecasters exploring the data from the resolution source should be sure to switch the sea ice extent to "Antarctic."
Related questions
In addition to switching to "Antarctic", forecasters should also press "show all years": the "2022 (Record minimum)" red line is far from the minimum for every day of the year.
