File:Figure 5.19 - Projected sea-level rise for the Twenty First Century.png

Projected sea-level rise for the Twenty First Century. The projected range of global averaged sea-level rise from the IPCC 2001 Assessment Report for the period 1990 to 2100 is shown by the lines and shading. (The dark shading is the model average envelope for all greenhouse gas scenarios, the light shading is the envelope for all models and all scenarios and the outer lines include an allowance for an additional land-ice uncertainty.) The updated AR4 IPCC projections (90% confidence limits) made in 2007 are shown by the bars plotted at 2095, the magenta bar is the range of model projections and the red bar is the extended range to allow for the potential but poorly quantified additional contribution from a dynamic response of the Greenland and Antarctic ice sheets to global warming. The inset shows the 2001 projection compared with the observed rate estimated from tide gauges (blue) and satellite altimeters (orange).