[bossyTeacher]

> We already almost entirely rely on synthetically amending fields with petrol byproducts to feed ourselves

elaborate please

[tremon]

https://en.wikipedia.org/wiki/Haber_process

> Nearly 50% of the nitrogen found in human tissues originated from the Haber–Bosch process. Thus, the Haber process [enabled] the global population to increase from 1.6 billion in 1900 to 7.7 billion by November 2018.

[NetMageSCW]

I assume that means we have to use fertilizer to ensure we can produce enough food crop.