Annual net sea-ice growth (positive values, red) and melt (negative values, blue) (m) in the EQ climate scenario (a,b), and the WARM climate scenario (c,d). The black lines indicate the annual mean position of the sea-ice margins. Latitudinal bands are shown for 80°, 60° and 40°. Results are averaged over the simulation years 451 to 500. Note that the color scale is nonlinear.