September 23, 2021: Over the past week the sea ice has now increased from last week by a rate of 2.89% from the level on 09/16/2021 of 4.740 M km2 to 4.881 M km2 for this week. This marks the end of the sea ice loss season, with a minimum value of 4.740 M km2 for 2021.
![](https://akclimate.org/wp-content/uploads/2021/09/NH_seaice_extent-2021-9-23-1024x623.jpg)
![](https://akclimate.org/wp-content/uploads/2021/09/NH_seaice_extent-anomaly2021-9-23-1024x623.jpg)