We use cookies to imporve your experience. By using our site, you consent to our cookie policy Learn more
arrow arrow_up breadcrumb-chevron-right breadcrumb-home dropdown-arrow-down loader GALogoWUNEP GALogo2018 GALogo2019 menu read-more-plus rrss-email rrss-facebook rrss-flickr rrss-instagram rrss-linkedin rrss-twitter rrss-vimeo rrss-youtube rrss_google_plus rrss_skype rrss_web pdf search share Completed In Process Ideas In Develpment Toogle Toogle Thumbnail View List View play close filter-collapse filter edit media_photo_library media_video_library graphics pictures videos collections next

Trends in Arctic sea-ice extent in March (maximum) and September (minimum) in the time period of 1979–2006

For the Northern Hemisphere (primarily the Arctic), observations using remote sensing technologies have been used to measure the extent and the to assess the development. Despite considerable year-to-year variability, significant negative trends are apparent in both maximum and minimum ice extents, with a rate of decrease of 2.5 per cent per decade for March and 8.9 per cent per decade for September (linear least squares regression). The differences in extent are calculated as anomalies compared to the 1979-2000 average, which was 7.0 million sqkm2 in September, and 15 million sqkm2 in March. Please note that this graphic has been updated with the 2007 figures.

Year: 2016

From collection: Global Outlook for Ice and Snow

Cartographer: Hugo Ahlenius, UNEP/GRID-Arendal

Tags: Antarctica Arctic arctic tundra Climate climate change indigenous peoples polar Polar and Mountain Environments

Graphics included in same album

View all media

Publications it appears in

View all publications

Related news

View all news