Despite September total #Arctic sea ice extent being high compared to recent years, the amount of multiyear ice as assessed from ice age reached a near-record low, with an extent of only 1.29 MM sq km. Learn more: https://t.co/nS5v9r4wh0. pic.twitter.com/YkRDDYmS5X

— National Snow and Ice Data Center (@NSIDC) October 7, 2021