Perhaps the biggest controversy surrounding the IPCC scenarios is that they omit the rapid melting of the Greenland and Antarctic ice sheets in sea-level rise projections. Several researchers, including Thompson, the polar ice expert from Ohio State University, and James Hansen, head of the NASA Goddard Institute for Space Studies, have been vocal critics of that omission, which they say dramatically skews the IPCC scenarios. If the Greenland and Antarctic ice sheets, the only two in the world, continue to melt at their current pace, Thompson and other scientists believe sea levels could rise several feet and swamp coastlines this century, not the 8 to 17 inches projected in the IPCC mid-range scenarios.
Even the most wildly bloated upwards adjusted sea level rise measurements show only 3mm/year, and no acceleration. Much of that is believed to be due to groundwater mining. That is at the bottom of the IPCC estimates. Are these experts terminally stupid, or just pathologically criminal? Where do they think the rapidly melting ice sheets are sending their water?