Linking right in with this seemingly odd desire to limit our use of water, energy and resources, is this compelling claim at Pascal Fervor:
The single most debilitating thought in our world is not often spoken, but I see it underlying everything today.

S U S T A I N A B I L I T Y.

This is the arch concern of "very important" people who are acting on behalf of the fear that there are too many people on earth.

It means that a minimum number of people aim to maximize human decline with a minimum of fuss.
Those who find themselves in positions of power and influence tend to be pessimists. Why that is I have done a bit more than speculate on my own and other sites. But why is not nearly as important to you, the individual, as first recognizing that the pessimism is there, in horrifying amounts, and then comprehending where all that angst is leading.

I find it logical and significant that Malthusianism which preceded Marxism came into being at roughly the same time that mankind achieved unprecedented liberty and then quickly gained the ability to thrive as never before. I also find it compelling to note that both deadly ideologies -- one from the start, the other proven to be -- have been and are heavily fostered and accepted by the highly positioned and/or the well-to-do who have self-styled themselves as "Progressives."

The furtherance of these ideas has become such accepted thinking in the splendid halls of "intelligentsia," that any who dare utter an optimistic word -- such as those who believe in a God who has promised to always provide -- are shouted down, marginalized, and persecuted.

And generic hatred of mankind other than oneself -- misanthropy-- underlies it all. I've witnessed it as have nearly everyone who is reading this blog when you bumped elbows with them. It is that sense of dread and loathing oozed by some in the upper classes for the "repulsive" middle class that ever strives upward to join them.
That ties together Progressivism, the hijacking of Environmentalism to rule every aspect of our lives, and the class warfare of the ultra-rich against middle America.

Belmont Club put it thus:
Once upon a time the future was going to be fun and the assumption was that things were always going to get biggest, faster and better. But today a significant current in public thinking holds that the coming years are going to be dark — that they literally should be dark. The UN’s has promulgated indicators to indicate how much of anything we shouild be allowed to use. Today efforts are being focused on the degree to which we can reduce energy consumption, limit intensity of materials use, cut down on water consumption, limit land use and curb mobility. The dream of the future is no longer the man in the flying car but the man/womyn/transgender person living in the smallest possible cubicle, limited to the narrowest geographic circle possible and consuming his own waste.
And we are getting there.

A future in which America will have no capability to send a human being into space is already in sight. And good riddance to it, some would say.
To bring it full circle, Belmont Club's link to the report on UN indicators above is entitled, gaggingly, "Sustainable Consumption", positing that consumption is destructive and bad.

There's that word again!

Sustainability is just a word to convince you to walk into the misanthropic tyrant's cage willingly.