Manhattan

Manhattan was once a beautiful island of rolling hills, ponds, forests, streams, etc. Now it is almost entirely asphalt and concrete.

To minimize human beings' impact on the natural world, some suggest we can simply build higher. We can pack more people into smaller spaces in cities, as has been done in Manhattan.

That is not a solution.

Not only do the cities themselves pave over the natural world, but all those people need to eat, and that food must be mostly grown somewhere else.

The simplest, most direct solution is to lower our population, which can be done by simply giving women basic human rights where they now don't have them. It should be done anyway, and the side effect will be a far better world in the long run.