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Summarize over population
“Earth’s ability to provide for growing numbers of people is finite” 1992 SW
United Nations estimates that the world population will eventually reach 14 billion
“An estimated 4.4 people are born every second” text book
Worldometer… right now as. Is rite this- by the time it takes to read this paper it will have gone up by x”
Post Green revolution- and industrial revolution
Uncontrolled and exponential population growth
Created a system to feed a growing population
Avoided widespread famine
Much of population increase will occur in 9 countries—
While population will increase more in devoliping countries, WEalthy countries like u=the US use 20% of all energy on the earth with only 4.5 % of the world population
“Populations change as a result of the balance among the factors promoting population growth and those promoting reduction”
textbook
Carrrying capacity- the number of individuals of a species that can be sustained in an area indefinitely
It would take 1.75 Earths to sustain our current population. If current trends continue, we will reach 3 Earths by the year 2050.
https://worldpopulationhistory.org/carrying-capacity/
However, it is very difficult for ecologists to calculate human carrying capacity. Humans are a complex species. We do not reproduce, consume resources, and interact with our living environment uniformly.
https://worldpopulationhistory.org/carrying-capacity/
‘The world has enough for everyone's need, but not enough for everyone's greed’ Gandhi
Summarize scientist warning
Warning to developed nations
Asked for a shift in society, a shift in values, a shift in priorities
To recognize the immediacy that was needed and to take action
Help from
Scientists
Business and industry leaders
Religious leaderes
The population
1992
Union of COncerned Scientists
1700 scientists
2017- 15,300 scientists co-signers
“To prevent widespread misery and catastrophic biodiversity loss” SW 2017