1. Ch. 20.3 Human Population Growth pp.388-390
It was predicted that Human Population couldn’t grow this high, but this didn’t factor in advances in agricultural.
Agricultural has increased resource availability
And we continue to increase
What is the limit?

2. Ch. 20.3 Human Population Growth pp.388-390
Currently the human population is in exponential growth
From size, not from growth rate
What is the relationship between Bubonic plague (bacterial infection) and Ebola (viral)

3. Ch. 20.3 Human Population Growth pp.388-390
Exponential growth not from growth rate:
Current growth rate about per capita
(𝑏𝑖𝑟𝑡ℎ𝑠 −𝑑𝑒𝑎𝑡ℎ𝑠) 𝑝𝑜𝑝𝑢𝑙𝑎𝑡𝑖𝑜𝑛 𝑠𝑖𝑧𝑒
Updated from book information
Capita

4. Ch. 20.3 Human Population Growth pp.388-390
Developed countries = industrialized countries
Cars, factories, modern cities
N. America, Europe…
Developing countries = low industrialization
few cars, usually higher growth rates
Asia, Africa, S. America…

5. Ch. 20.3 Human Population Growth pp.388-390
The carrying capacity of Earth for humans is uncertain
The average estimate is 10–15 billion