Trends in Arctic sea ice extent in March (maximum) and September (minimum) in the time period of 1979–2008
Trends in Arctic sea-ice extent in March (maximum) and September (minimum) in the time period of 1979–2006
Maps of average sea ice extent in the Arctic summer (September) and winter (March), and in the Antarctic summer (February) and winter (September)
Change in the age of ice on the Arctic Ocean, comparing September ice ages in 1988, 1990, 2001 and 2005
Projected temperature increases in the Arctic due to climate change, 2090 (NCAR-CCM3, SRES A2 experiment)