IB Environmental Systems and Societies HL Revision notes

Clear notes for every subtopic, with key terms and exam tips.

  1. Foundation3 subtopics
  2. Ecology5 subtopics
  3. Biodiversity and conservation3 subtopics
  4. Water4 subtopics
  5. Land2 subtopics
  6. Atmosphere and climate change4 subtopics
  7. Natural resources3 subtopics
  8. Human populations and urban systems3 subtopics
  9. Higher level lenses3 subtopics