The 2007 IPCC report concluded that average ocean levels will rise between 8 and 20 inches by year 2100. That seems to make sense considering it has risen about 8 inches since 1900.
Every now and then I see something that makes me scratch my head and wonder what all the fuss is about? Yes, if this prediction is correct it's going to be a problem for millions who live in areas that... I'm sorry to say they shouldn't. There is a reason why the Dutch have dikes and New Orleans requires an extensive levy system. Living in coastal areas is awesome but I'm sorry building on sand and on river deltas is just stupid. That said, I think humanity is more than capable of dealing with the projected sea level rise over the next 85+ years.
It's important to note that 10,000 years ago enough water was locked up in land glaciers to lower the world oceans by over a 150 meters. Have you ever wondered why the Chesapeake Bay and much of our East Coast look the way it does? The Chesapeake is essentially the drowned Susquehanna River valley.
Again I urge my fellow tree hugging friends to focus on air, water and land pollution that continues to adversely impact millions of lives on a daily bases and in my opinion poses a much greater risk to our planet than plant loving CO2.