Read here. Globally, scientists with solid empirical-based backgrounds are saying there are severe problems with many of the 2007 IPCC predictions. Namely, that many of the predictions are flat-out false based on the IPCC's political agenda, or wildly inflated by failed climate models.
New research by Houston and Dean has determined that the IPCC prediction of dangerously high acceleration of sea levels is likely both a combination of invalid climate models and desired political outcomes. They discovered that actual tidal gauge measurements over the last 80 years shows sea level increases decelerating, not accelerating per the IPCC prediction.
"Working with the complete monthly-averaged records of 57 U.S. tide gauges archived in the Permanent Service for Mean Sea Level data base that had lengths of 60-156 years (with a mean time span of 82 years), however, they determined that there had not been any acceleration in the rate-of-rise of the sea level along the shorelines of the United States over that period of time, during which interval the world's climate alarmists claim the planet had warmed at a rate and to a level that were unprecedented over the past one to two millennia. Quite to the contrary, in fact, they detected a slight deceleration of -0.0014 mm/year/year. And working with 25 of the tide gauge records that contained data for the period 1930-2010, they calculated an even larger deceleration of -0.0130 mm/year/year.....also report that they "obtained similar decelerations using worldwide-gauge records.....they rhetorically ask why the concomitant worldwide-temperature increase "has not produced acceleration of global sea level over the past 100 years," and, indeed, "why global sea level has possibly decelerated for at least the last 80 years."" [Houston, J.R. and Dean, R.G. 2011: Journal of Coastal Research]