ItÂs not just climate change sucking up water resources. ItÂs the huge surge in population; and the resulting surge in agriculture, which is the single largest consumer of water.
The Earth has limits and we are already exceeding them.
Then, after the lawyers ... first we kill all the priests..
'Course too, we can wait for Mother
(And likely the way the proles will choose by not-choosing.)
"Sentient Beings" ... indeed.