1. Population & Migration

2. When do you feel crowded at school?
How does overcrowding affect the way people live outside of school?
There are over 7 billion people on Earth right now.
What kind of challenges does that pose to the world’s population?

3. 4 most populated regions of the world
East Asia
South Asia
Europe
Southeast Asia

4. 5th most populated area on Earth
New York
Boston
Toronto
Quebec
Montreal
Philadelphia

5. What do you think are the 5 most populated countries?
China
India
United States
Indonesia
Brazil

6. Low population areas People tend to avoid living in lands that are
High
Dry
Cold
Wet
Can you identify one city or country for each of these areas?

7. Population Density
We’ve seen population density maps before, but what is population density?
Population density is the average number of people who live in a measurable area.
Examples – Houston’s population density is people per square mile
El Paso has 2.23 people per square mile
New York has people per square mile!

8. Review: What are the 4 most populated regions of the world?
Why is East Asia #1 and South Asia #2?
Why do you think New York has such a high population density?

9. Factors contributing to population increases
Population increases occur when the number of births exceeds the number of deaths.
Natural increase factors do not include migration
Natural Increase Factors include :
Birth rate
Death rate (Number of deaths per 1,000 individuals)
Infant mortality rate - (The number of deaths of children under 1 year old per 1,000 live births)
Total Fertility (Average number of children a woman has in her reproductive lifetime)
Life expectancy (Average number of years someone can currently be expected to live)

10. Tomorrow:
Challenges posed by population density and distribution of resources (Food, energy, wealth, etc)
Strategies used to combat rising overpopulation