• Introduction to ecosystems
  • Terrestrial and aquatic biomes
  • Primary productivity
  • Carbon, nitrogen, phosphorus, and water cycles
  • Trophic levels
  • The flow of energy in an ecosystem and the 10% rule
  • Food chains and food webs
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  • Introduction to biodiversity
  • Ecosystem services
  • Island biogeography
  • Ecological tolerance
  • Natural disruptions to ecosystems
  • Ecological succession
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  • Generalist and specialist species
  • Survivorship curves
  • Population growth and resource availability
  • Age structure diagrams
  • Human population dynamics
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  • Tectonic plates
  • Soil formation and erosion
  • Earth's atmosphere
  • Global wind patterns
  • Earth's geography and climate
  • El Niño and La Niña
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  • The tragedy of the commons
  • The Green Revolution
  • Types and effects of irrigation
  • Pest-control methods
  • Meat production methods and overfishing
  • The impacts of mining
  • Urbanization and ecological footprints
  • Introduction to sustainable practices including crop rotation and squaculture
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  • Energy sources and fuel types
  • Global energy consumption and distribution of natural resources
  • Natural sources of energy, including solar power, wind, geothermal, and hydroelectric power
  • Energy conservation methods
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  • Introduction to air pollution
  • Photochemical smog
  • Indoor air pollution
  • Methods to reduce air pollutants
  • Acid rain
  • Noise pollution
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  • Sources of pollution
  • Human impact on ecosystems
  • Thermal pollution
  • Solid waste disposal and waste reduction methods
  • Pollution and human health
  • Pathogens and infectious diseases
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  • Ozone depletion
  • Global climate change
  • Ocean warming and acidification
  • Invasive species
  • Human impacts on diversity
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