How Many People Can the Earth Support? (1998)
Paywall: https://archive.is/E5AB8
Cohen is the leading authority on Earth's poplation limits and carrying capacity. He's the first to say that the question and answer are complicated, but that does not mean that there are no limits.
In his book, How many people can the earth support?, Cohen visits many estimates and/or claims regarding carrying capacity and explores the assumptions or logic behind many of these, which range from a low of about 100 million to highs over 12 trillion. Most such estimates cluster around 1--10 billion, and seem more credible than outliers, especially of the high-end group.
https://www.worldcat.org/title/how-many-people-can-the-earth-support/oclc/898942239
https://archive.org/details/howmanypeoplecan00cohe
HN discussion: https://news.ycombinator.com/item?id=28904625
#population #JoelECohen #overpopulation #CarryingCapacity #limits #LimitsToGrowth