Arctic Sea Ice Hits Historic Low as Region Records Warmest Year on Record

A joint study by the UK National Oceanography Centre and the University of Southampton analysed recent satellite data and found that Arctic winter sea‑ice reached its lowest extent on record during the winters of 2025 and early 2026. The analysis shows the slowdown in ice loss observed earlier this decade was only temporary; the ice cover fell 5.8 % between February‑March 2024 and the same period in 2025, the sharpest inter‑annual decline since satellite monitoring began in 1978. Although the ice extent recovered slightly in 2026, it remained the second‑lowest value ever recorded.

Separately, the U.S. National Oceanic and Atmospheric Administration reported that 2026 was the warmest year for the Arctic since records started in 1900, with temperatures 1.6 °C above the 1991‑2020 average. The year featured the warmest autumn, the second‑warmest winter and the third‑warmest summer on file. Scientists warn that reduced ice cover amplifies warming by allowing more heat‑absorbing ocean water to enter the atmosphere, which can affect global weather patterns.