http://linkingweatherandclimate.com/ocean/figs/density2.png http://linkingweatherandclimate.com/ocean/figs/density2.png Look at this graph. By having the ice m

http://linkingweatherandclimate.com/ocean/figs/density2.png http://linkingweatherandclimate.com/ocean/figs/density2.png Look at this graph. By having the ice melt you'll have more salty water. Even if it is all fresh, the density maximum is close to 5 degrees Celsius. Ocean water is warmer in most of the oceans. Water vapor is a greenhouse gas - more water vapor will mean even higher temperatures, which would lead to more melting.