Graph depicting the end of century (~2090 – 2100) estimates for global mean sea level rise in meters. Meehl et al (2007) is based on climate model projections for the IPCC and outlined in black. NRC (1987, 2011, and 2012) is based on synthesis of the scientific literature and shown in light gray. Vermeer and Rahmstorf (2009), Horton et al (2008), Jevrejeva et al (2010), Grinsted et al (2009) are based on semi-empirical approaches and shown in dark gray. Pfeffer et al (2008) is a calculation of the maximum possible contribution from ice sheet loss and glacial melting and shown in black.