February 13, 2025: The  Arctic sea ice has has changed to increasing for this week at a rate of 2.05% (as opposed to last week’s decrease rate of -0.45%), from the level on 02/06/2025 of 13.393 M km2 to 13.673 M km2 for this week.  So, after two anomalous weeks in a row of decreasing sea ice extent, we are back to sea

February 6, 2025: The Arctic sea ice has had another surprising decrease this week at a rate of 0.45% (as opposed to last week’s decrease rate of 0.28%), from the level on 01/30/2025 of 13.454 M km2 to 13.393 M km2 for this week.  Not really sure what to make of that at the moment, but that’s two weeks in a row now. I

January 31, 2025: The Arctic sea ice has had a surprising decrease this week at a rate of 0.28% (as opposed to last week’s increase rate of 1.49%), from the level on 01/23/2025 of 13.494 M km2 to 13.454 M km2 for this week.  This is probably a temporary anomaly and not a seasonal shift to the melting season. Temperatures across the Arctic have

January 23, 2025: The Arctic sea ice has continued to increase this week and at a greater rate of 2.78% (as opposed to last week’s increase rate of 1.49%), from the level on 01/16/2025 of 13.119 M km2 to 13.494 M km2 for this week.  The negative sea ice anomaly this week was lower than the anomaly of -0.8913 M km2 on 01/16/2025 to

January 16, 2025: The Arctic sea ice has continued to increase this week but at a lesser rate of 1.49% (as opposed to last week’s increase rate of 3.09%), from the level on 01/09/2025 of 12.924 M km2 to 13.119 M km2 for this week. The negative sea ice anomaly this week was greater than the anomaly of -0.8193 M km2 on 01/09/2025 to

January 11, 2025: The Arctic sea ice has continued to increase this week but at a lesser rate of 3.09% (as opposed to last week’s increase rate of 3.25%), from the level on 01/02/2025 of 12.525 M km2 to 12.924 M km2 for this week. The negative sea ice anomaly this week was lower than the anomaly of -0.9032 M km2 on 01/02/2025 to

January 2, 2025: The Arctic sea ice has continued to increase this week but at a lesser rate of 3.25% (as opposed to last week’s increase rate of 3.65%), from the level on 12/26/2024 of 12.118 M km2 to 12.525 M km2 for this week. The negative sea ice anomaly this week was lower than the anomaly of -0.9327 M km2 on 12/26/2024 to

December 26, 2024: The Arctic sea ice has continued to increase this week but at a lesser rate of 3.65% (as opposed to last week’s increase rate of 5.77%), from the level on 12/19/2024 of 11.676 M km2 to 12.118 M km2 for this week. The negative sea ice anomaly this week was slightly lower than the anomaly of -0.9345 M km2 on 12/19/2024

December 19, 2024: (After a short lag in data uploads at NSIDC we have caught up. This report will be for 8 days from Dec 11th); the Arctic sea ice has continued to increase this week at a greater rate of 5.77% (as opposed to last week’s increase rate of 2.62%), from the level on 12/11/2024 of 11.002 M

December 11, 2024: The Arctic sea ice has continued to increase this week but at a lower rate of 2.62% (as opposed to last week’s increase rate of 6.22%), from the level on 12/05/2024 of 10.714 M km2 to 11.002 M km2 for this week. The the negative sea ice anomaly this week was essentially equal to the anomaly of -1.0477 M km2 on