An Overview of Environmental Science

Causes of Environmental Issues Unsustainable Population growth Unsustainable Resource Use Lack of Understanding of Ecological Principles Economic Failure to include Environmental Costs in Market Prices

World Human Population Curve

Human Population Growth  Exponential Growth  The Rule of 70

Population Growth Rates

How Does the Environment Keeps Us Alive?  Energy Resources  Matter Resources  Ecosystem Services  Energy Resources  Matter Resources  Ecosystem Services

Resources and Ecological Services

How do we Categorize the Economic Development of Nations  Developed Countries  Developing Countries

How do we Measure our Economic Development?  Gross National Product  Per Capita GNP

Globalization, the new basis for the World Economy  Social effects  Economic effects  Environmental effects

How do we Categorize Natural Resources  Renewable resources  Non-renewable resources

Renewable Resources  Sustainable Yield  Environmental Degradation  Resource Depletion  Environmental Degradation  Resource Depletion  The Tragedy of the Commons

Non-Renewable Resources  Non-Renewable Energy Resources  Metallic Mineral Resources  Non-Metallic Mineral Resources

Rapid Economic Growth can lead to Pollution  What is pollution?  Effects of Pollution

Sources of Pollution  Point source pollution  Non-point source pollution

Dealing With Pollution  Prevention (Input Control)  Cleanup (Output Control)

Environmental Problems  Epidemics (Disease)  Water Shortages  Climate Change  Loss of Biodiversity (Extinctions)  Decline of ecosystems  Malnutrition (Food Shortages)  Epidemics (Disease)  Water Shortages  Climate Change  Loss of Biodiversity (Extinctions)  Decline of ecosystems  Malnutrition (Food Shortages) Pollution and Rapid Resource Depletion will lead to: will lead to:

The Underlying Causes of Environmental Problems Rapid Population growthRapid Population growth Unsustainable resource useUnsustainable resource use Lack of understanding of ecological principlesLack of understanding of ecological principles Economic Failure to include environmental costs in market prices (You pay somewhere)Economic Failure to include environmental costs in market prices (You pay somewhere)

Environmental Impact Formula P x A x T = I Population x Affluence x Technology = Impact Developing Countries: P x A x T = I Developed Countries: P x A x T = I

Ecological Footprint

Environmental Worldviews or the Truth Depends on Your Point of View  Planetary Management Worldview  Environmental Wisdom Worldview Stewardship Worldview  Stewardship Worldview

Choices  Current Path (Reactive)  Sustainability Path (Proactive)  Current Path (Reactive)  Sustainability Path (Proactive)

The Three Legs ( like a stool) that hold up Western Civilization Economics Environment Politics (Social) Ignore any one and our civilization can collapse. Civilization

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