10/28/2026 | Heiner Kubny
Arctic melt season takes a surprising break
Arctic sea ice reached its minimum extent of the year on 10 September 2025, at around 4.60 million square kilometres. The yellow line shows, for comparison, the average minimum sea ice extent for the years 1981 to 2010. (Graphic: NASA Scientific Visualisation Studio)Over the decades, the summer melt

