“Degrowth” would would work best by depopulating (murdering) 36,000,000 over-consuming innocent citizens. We can call it “The Great Leap Forward!”
The Georgia Guidestones bear a globalist environmentalist manifesto calling for a worldwide population of 500 million. Think about how youd get there.
American Stonehenge: Monumental Instructions for the Post-Apocalypse
https://www.wired.com/2009/04/ff-guidestones/?currentPage=1
https://en.m.wikipedia.org/wiki/Georgia_Guidestones
Creepy as hell.
scientific communism??
Degrowth would do that, and more. A shrinking, more "planetary friendly" world economy wouldn't have the resources or aptitude for invention to confront crises.