The question of sea levels rising is a very interesting and important one, but it requires some subtlety of thought. For example, Canada, which was covered by ice until around 12,000 years ago up to a thickness of four kilometres through most regions, is experiencing a very strong rebound of its crust out of the sea. For example, in the Hudson Bay region, the land is rising out of the sea at a rate of around 1.5 centimetres per year.
In many of the regions in eastern Canada and the western Cordillera, the land is still rebounding out of the sea. So sea level rising is not so much of a problem for these regions, because of the post-glacial crust rebound.
However, in the high Arctic, there are regions that were not covered so heavily by ice, where sea level rise could have a substantial impact, especially along the coast of Russia, but not so much the coast of Canada, which mostly was covered heavily by ice.
The issue of global sea level rise is of enormous importance in many parts of the world, but each region can expect to experience different impacts.