Rev. Malthus and Population education

2. PRINCIPLES OF POPULATION
EDUCATION
TOPIC #9

3. IMPORTANT PEOPLE
An Englishclergyman andcollegeprofessor, Publishedthe
principlesof population ( 1798 ).
 his publicationwas the first importantcontributionto the
study of population.
Rev.ThomasRobertmalthus

4. IMPORTANT PEOPLE
Rev.ThomasRobertmalthus
He stressedthat our populationwas increasingmore
rapidlythan the availablefoodsource.

5. IMPORTANT PEOPLE
Rev.ThomasRobertmalthus
Withoutpopulationcontrol, the populationwould be
reduced by catastrophessuchas famine or war accordingto
Malthusiantheory.

6. IMPORTANT PEOPLE
Rev.ThomasRobertmalthus
 These Malthusiancatastrophesare naturallyoccurring
and have not taken place on a globalscale due
to the progress in
agriculture
And technology.

7. IMPORTANT PEOPLE
Rev.ThomasRobertmalthus
 He Alsopointed out that
human nature being whatit is, the passionbetween the sexes
appearsto be fairlyconstantand, if uncheckedpopulationwill
double itselfevery twenty-five years.

8. POPULATIONEDUCATION
What is population education?
 Population education is an approach of addressing the consequences of the
imbalance between population and world resources.

9. WORLD POPULATION: THE NUMBERS

10. WHAT ENABLED POPULATIONGROWTH?
1. Agriculture
 About 12,000 years ago, several cultures shifted from hunting and gathering
to farming.
 Humans became the first and only species ever to control our own food
supply, and steady population growth was the result.

11. WHAT ENABLED POPULATIONGROWTH?
2. Technology
 The development of agriculture led byturns to settlement, division of labor,
mathematics, literacy,and science.
 The Breakthroughs in medicine, nutrition and sanitationbrought down
childmortality rates and led to longer life spans.

12. WHAT ENABLED POPULATIONGROWTH?
2. Technology
 The mechanization of agriculture and improvements in food preservation
led to even greater increases in food production and availability.
 The Human numbers began doubling at an unprecedented pace.

13. WORLD POPULATION
As of the latest survey of 2016, world populationis at
approximately 7.4 billion people and growing.
China and India are thetwo most populous countries,each withmore than a
billion people.

14. WORLD POPULATION
we are stilladding approximately 80 million people a
year to theplanet at our current growth rate of 1.2
percent.
The recent population explosion is not because of increased birth rates, but decreases in
deathrates, with thehelp of medicine, agriculture,technology, disease prevention, and Etc…

15. WORLD POPULATIONIN THEFUTURE
Demographers expect world population to continue to grow through this century,
reaching over 10 billion by 2100.
In making projections, demographers consider the following;
1. fertility trends
2. health
3. pandemics
4. War
5.foodsecurity

16. WORLD POPULATIONIN THEFUTURE
In the world today, there are three times as many people under age as
over age . With such a large segment of the population yet to start
bearing children, the population is expected to grow through this
century, even asfertility rates are dropping.
Experts agree that the status of women around the globe is a key to population
stabilization.

17. UNDERSTANDING CARRYING CAPACITY
Why is it important for world population to stop
growing?
 The earth isa finite system and has acarrying capacity for how
many people canbe adequately supported
 carrying capacity isn’t about physical space – it’s about the types
of land and resources availableto sustainlife.

18. UNDERSTANDING CARRYING CAPACITY
How many people can the earth support?
 Thatdepends on people’s lifestyles, which impacts the rates at which
resources are consumed.
 resources are consumed at agreater pace to enable residents to eat a diet with more animalproducts,
use more energy in homes, and produce more goods.

19.  if everyone lived likethey do in wealthier countries, fewer people
could be supported by earth’s resources that live on the planet today.
UNDERSTANDING CARRYING CAPACITY
How many people can the earth support?
 Global demand for naturalresources hasdoubled in the past 50
years.

20. ENVIRONMENTAL IMPACTS
What are the effects of our population to the environment?
 There are many ways in which our large and growing human
population impacts the global environment. Using resources faster
than they can be replenished is justpart of the issue.

21. ENVIRONMENTAL IMPACTS
What are the effects of our population to the environment?
The followingare some of the
devasting effects to ourenvironment;

22. ENVIRONMENTAL IMPACTS
What are the effects of our population to the environment?
1. Climate Change
Our global temperature is on the rise due to the ever-
increasing amount of greenhouse gases that are emitted
through human activitiesincluding fossil fuel use,
deforestation and livestock grazing.

23. ENVIRONMENTAL IMPACTS
What are the effects of our population to the environment?
1. Climate Change
This warming is causingsea level rise from Arctic ice melt,
more extreme weather, and loss of habitat including coral
reefs.

24. ENVIRONMENTAL IMPACTS
What are the effects of our population to the environment?
2. Water Scarcity
About 35 percent of the world’s people already face chronic water
shortages. As the population grows, more water is needed for agriculture
and industry, aswell asfor domestic uses.

25. ENVIRONMENTAL IMPACTS
What are the effects of our population to the environment?
2. Water Scarcity
The worldwide supply of clean water is reduced, and accessible water is further
reduced by pollution.

26. ENVIRONMENTAL IMPACTS
What are the effects of our population to the environment?
Nearly allof the world’secosystems areshrinking to make way
for more humans and theirhomes, farms, factories and
shopping centers.
3. Biodiversity Loss

27. ENVIRONMENTAL IMPACTS
What are the effects of our population to the environment?
3. Biodiversity Loss
Humans depend on a rich biodiversity for survival – food,
medicines, climate regulationand more.

28. END
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