Abrupt vs gradual harvest

[native]

I wonder what will be the catalyst for those other countries to slow down?

Most issues boil down to inequality. If you can address those issues the poor have less children. So developed nations have to reach out in support and sacrifice.

As for No Cataclysms; What would you call a 200,000+ deaths in one event? Or a 9.0+ Earthquake that kills 15,000+ and destroys a whole coastline while melting down 4 nuclear reactors? These events create catalyst for those who see it as an opportunity to polarize and serve other selves.

I don't deny that Earth changes have happened in the past as a result of disharmony, but I'm not sure that Earth 'cleanses' the population through destruction. But I agree that it is catalyst.