The irony of all ironies...
Many progressives (Georgia Guidestones etc) believe that the Earth can only sustain a human population that numbers in the millions, not billions. They will get there wish only if they are 100% wrong about global warming. Global cooling could indeed kill billions of people... QUICKLY.
“their wish...” geez
Everyone that supports the Georgia Guidestones think they somehow belong in the surviving 500 million group.