bogus! this lecture looks only at "contraception" and "choice" though the "demographic transition" as environmental resistance to human population growth. These are NOT determinants of population size. This lecture ignores the number one factor in population size: food supply! Global food supply levelled off and has begun a gentle decline in the 21st Century. With peak oil, we'll see a crash over the next two decades. Lastly, Africa and other developing nations are not the major consumers!
I always wondered why all population predictions for humans seem to level off so nicely at the end. Is there no scenario in which we have a population crash, because that is usually what follows a prolonged exponential increase. Any ideas?
Excellent presentation. It would be nice to have some explanation to accompany it, however. Still, good information, such as the relation between K, S-curves, J-curves, and its effects on population size.
bogus! this lecture looks only at "contraception" and "choice" though the "demographic transition" as environmental resistance to human population growth. These are NOT determinants of population size. This lecture ignores the number one factor in population size: food supply! Global food supply levelled off and has begun a gentle decline in the 21st Century. With peak oil, we'll see a crash over the next two decades. Lastly, Africa and other developing nations are not the major consumers!
lauranimist 1 year ago
I always wondered why all population predictions for humans seem to level off so nicely at the end. Is there no scenario in which we have a population crash, because that is usually what follows a prolonged exponential increase. Any ideas?
GodJasperX 2 years ago
cool 49999999/50000000
Apple6128 2 years ago
@Apple6128 shut up retard!
ForToday03 11 months ago
Excellent presentation. It would be nice to have some explanation to accompany it, however. Still, good information, such as the relation between K, S-curves, J-curves, and its effects on population size.
soulhunger1 3 years ago