The IPCC fourth assessment report did not give any upper bound to sea level rise this century. But in a spectacularly bad piece of science communication they gave a range of 18 to 59cm excluding effects from accelerating ice sheet flows. Which are potentially the biggest contributors to sea level rise this century. However, a study last year by Siddal et al did come up with an upper bound of 82 cm. But now their study has been retracted, so sea level rise this century may well be more than 82 cm.
In the topsy-turvy world that is the denialists’ planet, where up is down and black is white, the retraction proved that sea level rise wasn’t going to be a problem and global warming is nothing to worry about. Thers points to a particularly egregious example from Ann Althouse, who holds down a job as a law professor.