A book I found interesting is: “Limits to Growth: the 30-year update.” They made a sophisticated computer model of the economy, population, and pollution. Nine out of ten scenarios they tested resulted in a population crash sometime in the next 100 years. (They don’t guarantee the scenarios are right, but they are certain we have a problem.) Anyway it’s a smart and easy read.
A (possibly not as convincing) 7-page summary is at: http://donellameadows.org/archives/a-synopsis-limits-to-growth-the-30-year-update/
Also, “A harrowing scenario analysis of how human civilization might collapse in coming decades due to climate change has been endorsed by a former Australian defense chief and senior royal navy commander.”
Also, a study published in Nature Scientific Reports says that the planet needs forests for carbon storage, oxygen production, water cycle regulation, etc and we’re cutting them down. They project a 90% chance of an irreversible collapse of society if we continue present trends of deforestation.
The “Limits to Growth” people are still warning us:
https://news.slashdot.org/story/21/07/23/2343239/society-is-right-on-track-for-a-global-collapse-new-study-of-infamous-1970s-report-finds
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