3 ms·

Umm, can you cite something supporting your assertation that Earth's carrying capacity is 100 million humans?

• sandworm101 11y ago
  Take the population today, and remove modern agriculture. Take the food supply down to what it would be per-acre without fertilizer. Then lower it again for lack of irrigation in many areas. That's a start.
  • schismsubv 11y ago
    I think the point is that "100 million" is an extremely suspicious round number, and smacks of pulling a number out. It could be an "Everest" number (http://www.tandfonline.com/doi/abs/10.1080/00031305.1982.10482782 http://www.tandfonline.com/doi/abs/10.1080/00031305.1982.104...), but that seems highly unlikely.
    • jonathanleane 11y ago
      Well according to Wikipedia (https://en.wikipedia.org/wiki/World_human_population https://en.wikipedia.org/wiki/World_human_population), world population in 1800 was estimated at one billion. It was estimated at 400m in 1000 AD. So yeah, not sure where that 100 million comes from.
  • tzs 11y ago
    You'll have to remove more than "modern" agriculture, considering that the world population passed 100 million over 2500 years ago [1]. [1] https://www.census.gov/population/international/data/worldpop/table_history.php https://www.census.gov/population/international/data/worldpo...