Older Arctic Sea Ice Disappearing Arctic sea ice has not only been shrinking in surface area in recent years, it’s becoming younger and thinner as well. In this animation, where the ice cover almost looks gelatinous as it pulses through the seasons, cryospheric scientist Dr. Walt Meier of NASA Goddard Space Flight Center describes how the sea ice has undergone fundamental changes during the era of satellite measurements. Read more: http://go.nasa.gov/2e5RLR6 Credit: NASA’s Goddard Space flight C

The Arctic just recorded its 7th-lowest ice extent for this time of year ❄️ 📉 According to NASA, "Sea ice is shrinking and getting younger. Today, most Arctic sea ice is thinner, first-year ice, which is less able to survive the warmer months than older, thicker sea ice." A NASA study showed fall sea ice is now around 4.2 feet thick, down from a peak of 8.8 feet in 1980. About 40% of Arctic summer sea ice has vanished since 1979, and it could disappear entirely around mid-century, according to