Hi Lynn,
I will try to read it.
But in the mean time, what do you think about his Population
Bomb and his role in the anti-human population movement?
I’m only familiar with its ideas, which seem to be based on the ideas of Malthus, who pointed out that populations grow geometrically, which will eventually outstrip crop acreage and production, which only grows arithmetically. These are legitimate concerns, because if there is not enough food for all the people, people may suffer starvation, wars, and strife.
OTOH, a more modern theory seems to be more appropriate to the world situation today, “the demographic transition theory” – which says in the past there was a high birth rate and a high death rate (which kept the population stable), but as societies modernize the death rate decreases 1st (due to better medicine, food etc), while the birth rate remains high, which causes the population to increase for a while, but eventually as people see their children are surviving into adulthood and as modern life does not require the farm labor of children, then the birth rate also declines, and the end state is the population stabilizes. These is what seems to be happening, so I tend to go along with that. You can look it up. Here are some great presentations on this by the Swedish demographer, Hans Rosling:
youtube.com/watch?v=jbkSRLYSojo (you can look up his other ones)
(BTW, Ehrlich is not a demographer, but a biologist, so his works on climate change and how it affects biota are probably more authoritative).
After doing a web search, I found another writing by or about him, which may be the one the Pope was impressed with – HOPE ON EARTH see
press.uchicago.edu/ucp/books/book/chicago/H/bo17588109.html
Aside from demographic theory, CC is threatening to harm food production, esp after 2050, so even if the population stabilizes we are in for a very rough ride. That is my area of interest.