Environment & Climate
Arctic sea ice shrinks to tenth-lowest minimum on record
Arctic sea ice shrank to 1.78 million square miles on September 12, according to NASA News.
The short version
- Arctic sea ice reached its 2026 annual minimum on Sept. 12, covering roughly 1.78 million square miles.[NASA News]
- The extent tied 2008, 2010, and 2025 as the 10th-lowest minimum across nearly five decades of satellite tracking.[NASA News]
- The last 20 years have registered the 20 lowest summer minimums in satellite history, though recent years have seen extents plateau.[NASA News]
Key facts
- Arctic sea ice fell to an estimated 1.78 million square miles (4.6 million square kilometers) on Sept. 12, 2026.[NASA News]
- The 2026 minimum tied 2008, 2010, and 2025 for the 10th-lowest minimum since continuous satellite tracking began in 1978.[NASA News]
- The past 20 years, from 2007 through 2026, represent the 20 lowest annual minimum extents in the satellite record.[NASA News]
- Increased cloud cover over the past decade has blocked solar radiation and contributed to relatively stable September sea ice extents recently.[NASA News]
What remains uncertain
- Weather conditions introduce summer-to-summer variability in ice melt rates, leaving year-to-year extent fluctuations subject to changing atmospheric patterns.[NASA News]
Sources
Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.