Unit 9 of IB Environmental Systems and Societies covers HL Lenses. This unit contains 3 topics and 9 sub-topics. Below you'll find free study notes, flashcards, and exam preparation resources for every topic in this unit.
Higher Level students should treat this unit page as a route map: revise the shared core, then use the HL notes and topic links to reach the extra depth and evaluation expected at HL.
Unit 9 is exclusive to HL and introduces three interdisciplinary lenses — Environmental Law, Environmental Economics, and Environmental Ethics. These lenses provide frameworks for deeper evaluation of environmental issues, requiring students to integrate legal, economic, and ethical perspectives into their analysis.
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