Topic 1: Foundation
1.1 Perspectives
1.2 Systems
1.3 Sustainability
Topic 2: Ecology
Topic 3: Conservation and biodiversity
Topic 4: Water
Topic 5: Land
Topic 6: Atmosphere and climate change
Topic 7: Natural resources
Topic 8: Human populations and urban systems
HL lenses
View a summary cheatsheet for 1.2 Systems
1.2A Systems
1.2B Negative feedback loops
1.2C Positive feedback loops
1.2D Models
1.2E Emergent properties
1.2F Resilience of a system
