Arctic sea ice appears to have hit its annual minimum extent on Sept. 16, at 4.72 million square kilometers (1.82 million square miles). This year's extent is the 12th lowest in the satellite record, according to scientists at NASA - National Aeronautics and Space Administration and National Snow and Ice Data Center: https://climate.nasa.gov/news/3114/nasa-finds-2021-arctic-summer-sea-ice-12th-lowest-on-record/ 🎥: NASA's Scientific Visualization Studio | NASA Climate Change

With thick ice gone, Arctic sea ice changes more slowly - NASA Science

NASA Discovers Secret Nuclear Base Beneath the Arctic Ice