“I’d kill for a drink of water,” could be a military call-to-arms soon, as the planet’s most essential commodity is swallowed, evaporated, polluted, and utilized at unsustainable levels.
Earth contains a finite, unchanging amount of H2O. Usage has escalated dangerously, due to human population explosion (1.65 billion - 9 billion from 1900-2025) and the myriad cubic-acres of water demanded in mining, industry, agriculture, and recreation. One ton of wheat requires one thousand tons of water; watering the world’s golf courses requires 2.5 billion gallons per day, and 650 gallons only gets you either a pound of rice or one cotton shirt.)
Global warming also dwindles our freshwater: glaciers are vanishing, lakes, rivers, and aquifers are shriveling. Lake Chad has 95% of volume in the last 50 years. Lake Meade (water source for Las Vegas) could be dry n a decade. The Yellow River in China often fails to reach the ocean.