"There is some limited archaeological evidence [based on] the sill heights of fish enclosures that the Romans used, that's probably the strongest evidence that there hasn't been any significant change in sea level over the last 2,000 years."
Um...doesn't this COMPLETELY contrdict their study? The Medieval Warming Period was significantly warmer than it is today and somehow the world's coastlines were not inundated.
Go to this site for photos and measurements from 1841:
http://www.john-daly.com/ Of course we can’t prove that it won’t rise just because it hasn’t. But 1.5 meters would be extraordinary. Parts of Antarctica & Greenland are adding ice as other parts are losing it.