Again this is only one side of the spectrum to this question. On the other hand, with the ice melt coming from worldwide sources and such a large increase in fresh water being reintroduced into the ocean. This fresh water evaporates quicker and with more evaporation occuring over the oceans, that precipitation is making its way across our lands and becoming snowpack and precipitation in the form of rain and in effect more floods and less droughts.
NOAA introduced a study (see Land-Based Precipitation) that shows that the earth has a "fail-safe" in case of the temperatures heating up and greenhouse emissions increasing. This fail-safe program is called Cloud Cover. This theory says that clouds are another great indicator of Climate Change (Natural of Man-Made) because when the earth heats up, more precipitation develops, more precipitation means more clouds developing, and so cover the earth's surface, returning the earth's temperature to a reasonable level. This is still a theory but a reasonable one to accept as very possible.
If Global Warming is to increase the amount of droughts, this could be detrimental to the whole human race. As of right now the earth is adapting and working out its temperature increase and as for the amount of droughts around the world, there is a decrease and an increase of flooding around the world.