Environment Counts | Second lowest Arctic sea ice extent recorded in September 2016 :
On September 10, 2016, Arctic sea ice extent shrank to 4.14 million square kilometers (1.60 million square miles). The National Snow and Ice Data Center (NSIDC) announced that this summer low was statistically tied with the minimum of 2007 for second-lowest in the satellite record, both behind the 2012 record low.
The graphs above shows changes in the yearly cycle of Arctic sea ice extent from 1979 through September 13, 2016. The black line is the 1981â€“2010 average, and the gray band around it is the normal range of variability for the same period. Yearly extents are color-coded by decade: 1979â€“1989 (green), 1990s (blue-purple), 2000s (blue), and 2010s (pink).