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| Fundamental Issues in Environmental Science | |
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| Big Question: Why is Science Necessary to Solve Environmental Problems? | |
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| Case Study: Easter Island | |
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| Fundamental Principles | |
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| Human Population: The Basic Environmental Problem | |
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| Sustainability | |
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| Eartha's Carrying Capacity | |
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| A Global Perspective | |
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| Cities Affect the Environment | |
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| People and Nature | |
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| Science and Values | |
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| Solving Many Environmental Problems Involves Systems and Rates of Change | |
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| Environmental Unity | |
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| Changes and Equilibriums in Systems | |
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| Biota: Biosphere and Sustaining Life Characteristics of Environmental Systems That Make Solving Environmental Problems Harder | |
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| The Precautionary Principle: When in Doubt, Play It Safe | |
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| Return to the Big Question | |
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| Summary | |
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| Key Terms | |
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| Getting It Straight | |
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| What Do You Think? Pulling It All Together | |
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| Human Population Growth | |
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| Big Question: Why is it the Underlying Environmental Problem? | |
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| Case Study: How the Great Tsunami of 2004 Affected the Human Population | |
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| How Populations Change Over Time: Basic Concepts of Population Dynamics | |
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| The Prophecy of Malthus | |
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| Population Growth | |
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| How Many People Have Lived on Earth? | |
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| The Logistic Growth Curve | |
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| Other Clues to How Our Population May Change | |
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| Age Structure | |
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| The Demographic Transition | |
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| Human Death Rates and the Rise of Industrial Societies | |
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| Longevity and Its Effect on Population Growth | |
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| Life Expectancy | |
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| Limiting Factors | |
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| The Quality of Life and the Human Carrying Capacity of Earth | |
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| How Can We Achieve Zero Population Growth? | |
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| How Many People Can Earth Support? | |
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| Return to the Big Question | |
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| Summary | |
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| Key Terms | |
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| Getting It Straight | |
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| What Do You Think? | |
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| Pulling It All Together | |
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| Further Reading | |
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| Biogeochemical Cycles | |
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| Big Question: Why Are Biogeochemical Cycles Essential to Long Term Life on Earth? | |
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| Case Study: Lake Washington | |
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| How Chemicals Cycle | |
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| Biogeochemical Cycles | |
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| Chemical Reactions | |
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| Environmental Questions and Biogeochemical Cycles | |
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| Biological Questions | |
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| Geologic Questions | |
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| Atmospheric Questions | |
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| Hydrologic Questions | |
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| Biogeochemical Cycles and Life: Limiting Factors | |
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| General Concepts Central to Biogeochemical Cycles | |
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| The Geologic Cycle | |
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| The Tectonic Cycle | |
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| The Hydrologic Cycle | |
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| The Rock Cycle | |
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| Biogeochemical Cycling in Ecosystems | |
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| Ecosystem Cycles of a Metal and a Nonmetal | |
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| Chemical Cycling and the "Balance of Nature" | |
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| Some Major Global Chemical Cycles | |
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| The Carbon Cycle | |
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| The Missing Carbon Sink | |
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| The Nitrogen Cycle | |
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| The Phosphorus Cycle | |
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| Return to the Big Question | |
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| Summary | |
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| Key Terms | |
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| Getting It Straight | |
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| What Do You Think? | |
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| Pulling It All Together | |
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| Further Reading | |
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| Ecosystems | |
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| Big Question: What is Necessary to Sustain Life on Earth? | |
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| Case Study: The Acorn Connection | |
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| How Populations Change Over Time and Interact with Each Other | |
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| Professions and Places: The Ecological Niche and the Hab | |