I bring up the topic not just for funsies, of course, but because the maps above are real possibilities.
How? Climate change.
As we continue to burn fossil fuels for energy and emit carbon into our atmosphere, the planet gets warmer and warmer. And that, ladies and gentlemen, means melted ice.
A study published this past September by researchers in the U.S., U.K., and Germany found that if we don't change our ways, there's definitely enough fossil fuel resources available for us to completely melt the Antarctic ice sheet.
Basically, the self-inflicted disaster you see above is certainly within the realm of possibility.
"This would not happen overnight, but the mind-boggling point is that our actions today are changing the face of planet Earth as we know it and will continue to do so for tens of thousands of years to come," said lead author of the study Ricarda Winkelmann, of the Potsdam Institute for Climate Impact Research.
If we want to stop this from happening," she says, "we need to keep coal, gas, and oil in the ground."
The good news? Most of our coastlines are still intact! And they can stay that way, too — if we act now.