Arctic sea ice reaches annual minimum amid global glacier loss

Arctic sea ice reached its annual minimum on September 12, 2026, covering 4.6 million square kilometers. According to NASA and the National Snow and Ice Data Center (NSIDC), this is the tenth lowest value in the satellite record, tying with 2008, 2010, and 2025. The extent is 1.62 million square kilometers below the 1981-2010 average.

While the September minimum has shown a stabilization at very low levels over the last two decades, the remaining ice is noted to be thinner and younger. The trend from 1979 to 2026 indicates a decadal decrease of 11.8% in minimum ice extent compared to the 1981-2010 average.

Separately, a study published in Nature Communications reveals that just 3.2% of the world's glaciers—specifically those terminating in lakes, oceans, or ice shelves—account for over half of global ice loss. Between 2000 and 2019, these glaciers lost 134 billion tons of ice annually. Researchers from the University of Birmingham and the University of Leeds found that glaciers ending in lakes lose ice approximately 57% faster than those on land, relative to their size.