As a society, we've chosen to manage resources via capitalism. If you use less water, what that means is water is cheaper so some corporation can afford another few acres of almond trees. If consumers cut their waste in half, the slack would be picked up at the corporate level.
I genuinely believe the only answer is violently enforced regulation. Set a standard like the Geneva convention that says how much pollution and waste you are allowed to generate on a per-area basis, and actually go to war against countries that don't meet the goals. Throw executives in jail that increase profits by migrating production to countries with less regulation around emissions and waste.
This is a tragedy of the commons problem, and you aren't going to fix it by having even a large percentage of the population agree to be respectful of the commons. You have to declare war against those that aren't respecting the commons. I don't see another path that will actually result in meaningful change.