This was my take too. Globally to me, you cannot "waste water", you just can use more that your region can sustain. Where I live, we have plenty of water and

This was my take too. Globally to me, you cannot "waste water", you just can use more that your region can sustain. Where I live, we have plenty of water and the amount will increase as the Earth warms, based upon current theories. But, there is a limit to how much water is treated and the local government refuse to invest in additional treatment. So we have water shortages here even though our lakes and rivers are filled and in some cases a bit overfilled. Eventually people in the Southwest will have to move, along with people in the South. And people think migrations are bad now, wait a few decades.