2018 Arctic Summertime Sea Ice Minimum Extent Tied for Sixth Lowest on Record (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption The yearly minimum Arctic sea ice extent has been decreasing at a rapid pace since the late 1970s due to warming temperatures. The twelve lowest extents in the satellite era have all occurred in the last twelve years. Credit National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.