Home New content: (August 2021): IA Planning Template ONE: Foundations of Environmental Value Systems 1.1 – Environmental value systems1.2 – Systems and models1.3 – Energy and equilibria1.4 – Sustainability1.5 – Humans and pollution TWO: Ecosystems and Ecology 2.1 – Species and populations2.2 – Communities and ecosystems2.3 – Flows of energy and matter2.4 – Biomes, zonation and succession2.5 – Investigating ecosystems THREE: Biodiversity and Conservation 3.1 – An introduction to biodiversity3.2 – Origins of biodiversity3.3 – Threats to biodiversity3.4 – Conservation of biodiversity FOUR: Water and Aquatic Food Production Systems 4.1 – Introduction to water systems4.2 – Access to freshwater4.3 – Aquatic food production systems4.4 – Water pollution FIVE: Soil Systems and Terrestrial Food Production Systems and Societies 5.1 – Introduction to soil systems5.2 – Terrestrial food production systems5.3 – Soil degradation and conservation SIX: Atmospheric Systems and Societies 6.1 – Introduction to the atmosphere6.2 – Stratospheric ozone6.3 – Photochemical smog6.4 – Acid deposition SEVEN: Climate Change and Energy Production 7.1 – Energy choices and security7.2 – Climate change – causes and impacts7.3 – Climate change – mitigation and adaptation EIGHT: Human Systems and Resource Use 8.1 – Human population dynamics8.2 – Resource use in society8.3 – Solid domestic waste8.4 – Human population carrying capacity