Topic 1: Foundation
Topic 2: Ecology
2.1 Individuals, populations, communities and ecosystems
2.2 Energy and biomass in ecosystems
2.3 Biogeochemical cycles
2.4 Climate and biomes
2.5 Zonation, succession and change in ecosystems
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 2.4 Climate and biomes
2.4A Climate
2.4B Biomes
2.4C The tricellular mode of atmospheric circulation
2.4D Climate in biomes (HL)
2.4E El Nino (HL)
2.4F Tropical cyclones (HL)
