If you could do population management at a worldwide level, you would look at the current density and available resources, yes? That would be the most viable and survivable solution. Perhaps tweaked a little towards actual habitable land, because steep rocky mountains can be pretty hard to try and survive on. But that's besides the point; We're already at 508(!) humans per km2 in The Netherlands, in Canada by comparison that's 4 per km2, in the US it's 33 per km2, in France 106/km2, on Ibiza 227/km2 and in Denmark there are around 132 humans/km2. Just some examples. I find it absurd that not one world leader with half of a brain comes up with decent dividing of habitable land by now. Not even a proposition to that end. Hell no; All they're doing is pulling up walls, protecting resources for their own, keeping it for themselves (and preferably with underpaid slaves working and producing for them at the other side of the wall). Nobody inherited land on earth, they're all just pretending to have ownership of it. This (strictly human) game of pretend ownership will all come tumbling down when shit hits fans in densely populated areas, when mass…