If we make the land less than habitable, the human race grows too large or we simply develop the means and decide to use it, there’s another place to go aside from the oceans, and that’s up. With some hovering in the sky like giant air balloons and others that are more like semi-stationary…
You can trash dumpsters all you like (see what we did there?) but even these much-denigrated, flame spewing and dive-worthy…
