60-70 meters, but melting the poles would thousands of years. In the next century, worst-case estimates put the rise in sea level at around 1 meter: http://en.w

60-70 meters, but melting the poles would thousands of years. In the next century, worst-case estimates put the rise in sea level at around 1 meter: http://en.wikipedia.org/wiki/File:Ipcc_proj.jpg http://en.wikipedia.org/wiki/File:Ipcc_proj.jpg