Read the book OVERSHOOT https://www.amazon.com/Overshoot-Ecological-Basis-Revolutionary-Change/dp/0252009886/ref=asc_df_0252009886/?tag=hyprod-20&linkCode=df0&h

Read the book OVERSHOOT https://www.amazon.com/Overshoot-Ecological-Basis-Revolutionary-Change/dp/0252009886/ref=asc_df_0252009886/?tag=hyprod-20&linkCode=df0&hvadid=312130957577&hvpos=&hvnetw=g&hvrand=17985204959479128350&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1025433&hvtargid=pla-488792800064&psc=1 https://www.amazon.com/Overshoot-Ecological-Basis-Revolution... You'll see that we can't feed 9bn people.