by the end of the 21st century for a global warming of 2-4ºC above late 20th century values or 3-5ºC above pre-industrial values This linear relationship between sea-ice loss and global-averaged surface air temperature has implications for sea-ice recovery. One set of simulations using the A1B scenario suggests that Arctic sea ice may recover if GHG emissions were reduced. This response is linear for the annual sea-ice extent but nonlinear for September (Holland et al., 2006, 2010).
Compared to the Arctic very few studies examine the predicted sea-ice changes for the Antarctic. However, many of the characteristics of projected change are like those for the Arctic. Over the 21st century Antarctic sea-ice