1. Human Population

2. Example of Exponential Growth Phase (J- Shaped Curve) Eg. Human Population – Human population increased relatively slowly until about 1650. – It then doubled in the next two centuries. – It doubled again in the next 80 years. – Our population is now over 7 billion. This increases by 80 million/year This in an increase of 214,000/day. It takes 3 years for the world population to add the population equivalent of another U.S. (which is around 300 million).

3. Example of Exponential Growth Phase (J- Shaped Curve)

4. Human Carrying Capacity How long will it be until we reach our carrying capacity? What will happen then? What factors increase our carrying capacity? – Farming – Medicines – Better sanitation – Resource choice

5. Resource Choice What is the roll of resource choice on human carrying capacity? It depends on 3 types of choices: 1. renewable resources 2. Non renewable resources 3. Rate of consumption

6. Human Carrying Capacity—Resource Choice Renewable resources Increase carrying capacity – resources that come from things that can regenerate eg. Fish, timber, wind

7. Human Carrying Capacity-Resource Choice What factors decrease our carrying capacity? Nonrenewable Resources – Resources that are finite Eg. Oil, Natural Gas, Coal AND….

8. Human Carrying Capacity-Resource Choice Rate of Consumption – Over consumption leads to a decrease in carrying capacity.

9. Human Carrying Capacity What impact does this stretching our carrying capacity have on other species. – Endangers them or completely wipes them out.

10. Human Carrying Capacity-Resource Choice Using the graph explain why exceeding the global biocapacity per person negatively impacts other species.

11. Human Carrying Capacity What are some consequences of human population growth? – Global Warming Caused by the increasing burning of fossil fuels which lead to enhanced greenhouse effect. – Pollution – Acid Rain – Pile up of Waste – Ozone Depletion

12. The End!!