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human
[Waterworld] Flooding the World

So I re-watched Waterworld last night, horrible movie but a massive guilty pleasure of mine, and of course the idea of how the earth flooded bugged me. Realistically, how could such an event occur. Melting icecaps would make a *fresh* water ocean, so that would cause issues. I was thinking it was less flooding and more continents sinking. 

So, I leave the question open, what are possible ways to flood the earth and have it result in the world we see in "Waterworld"?
gpt
didnt they state at the beginning that it was due to industrialization? i thought that was the point of the movie...i mean, the bad guys were on an oil tanker...that's not very subtle (and its the Valdez, no less). also, Deacon makes it clear that when they find dry land they are going to industrialize it completely, futher villainizing the idea.


the bigger issue with me and this movie is the time line. the evil oil tanker is still floating, the jet skis and plane are still operational, the cigarettes are still smokable, and the ammunition still fires. all of this leads me to believe that the earth had only been flooded for several hundred years, *at most,* during the time the movie took place. that's hardly enough time for humans to develop gills and webbed feet, and surely not enough time for that other huge ocean creature to evolve.


and lastly, i think life on an all water world would be much more treacherous. the storms would be outrageous without land to break them apart. 


i love the movie though.