Flooding is serious business. This year’s flooding on the Mississippi is really bad. xkcd’s creator, Randall Munroe, looks at a worst case scenario. Well, he looked at it last year. Anyway, the scenario is that crest of the flood overwhelms the Army Corps of Engineer’s structure keeping the Mississippi in the Mississippi and the river breaks through and flows to the Gulf of Mexico down the Atchafalaya River. It would be very difficult putting the river back in the old channel since the Atchafalaya river is shorter and steeper to the Gulf. This would cause huge damage, probable loss of life, and wreck the water supply of New Orleans because the Mississippi would be salty there.

The article can be found here and it has some must read links in it.

Yet again, comics have shown us the way.