1. Urbanization

2. How do we use land?

3. Land Use Industrial Uses Clear cut land to place industrial plants
Hazardous Waste produced
Thermal Pollution – water too hot
Chemical waste entering water systems

4. Land Use Housing and development
New subdivisions are cropping up due to the population growth in areas.
Land is cleared for commercial use (retail businesses and medical facilities)

5. What is Urbanization? Large town with a growing suburbs
Depend on resources outside the city
Why are big cities growing?
Increase in birth rates
Immigration – poor are moving to larger cities and away from rural areas
Cities have grown from 2% to 45% since 1950
By % of all people in the world will live in urban areas.

6. 75% of the US population lives in urban areas occupying 3% of the country’s land area

7. What are Heat Islands?

8. Heat Islands: The enormous amount of heat generated creates an urban heat island

9. Heat Island research
What trends do you see?

10. WHAT ARE THE BENEFITS AND PROBLEMS WITH URBAN DEVELOPMENT?
Infectious diseases
Inadequate water system
Poor sewer systems
Exposure to pollution
BENEFITS
Better education system
Medical services
Social service programs

11. What is Population growth?
Current Population Rate
US: over 300 million World: over 7 billion

12. What is Carrying capacity?

13. Ecological Stability
Carrying Capacity – maximum number of individuals the environment can support

15. Exceeding the Carrying Capacity
Reindeer introduced to a small island off of Alaska in the early 1900s exceeded the carrying capacity, with an "overshoot" followed by a "population crash" in which the population was totally decimated by the mid–1900s.
© Brooks/Cole Publishing Company / ITP