Ropo: It's a tiny amount of water, compared to the amount that was locked up in the polar ice cap during the Ice Age. You do realize that the Ice Age polar cap was orders of magnitude larger than the polar ice and glaciers that exist today, don't you? There is not enough ice that can melt now that would cause the kind of flooding you are babbling about. The glaciers and polar ice melted during the Medieval Warm Period, only one thousand years ago, when it was hotter than now, and there was no flooding. And it's not going to flood now either. How many ways can I explain to you?
And again, at those days there were next to nothing build in the coastlines of the oceans, while now days there is. It is just stupidity use that kind of arguments, while population of the world was a fraction compared to present time. For example, do you have a maps which you can use to compare where the coastlines were at that time? No, you don't. How you can say it didn't effect, while you don't have any reliably records about the things which happen? Truth is that water levels were globally higher at that time because of the melting ice, but because there weren't any major cities build at the coastline 1000 years before the "flood" with high risers etc. rising sea level have small or none effect to the people living there. They just move higher grounds. And where all that water comes for those glaciers of the ice age? Is the amount of water changed during these years? No. There is still same amount of water on this earth than there were 100000 years ago, but sea levels are regulated by the amount of polar ice. Les ice = higher sea levels and another way around.
And what exactly was the medieval global warming? Sea water temperature were approximately 1°C higher. We have past those climate temperatures at 90ties and it is still rising. And how about this: http://www.dailymail.co.uk/sciencetech/article-1162395/Google-Earth-reveals-fish-trap-rocks-1-000-years-ago-British-coast.html
Fish trap build 1000 year ago at the sea level in British coast, is now 12 ft under the sea level? Oh gee, why in the name of fuck they have build it so deep? Well, they didn't..