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NotesESS HLUnit 9
IB ESS HL · Unit 9 of 8

Unit 9: HL Lenses

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.

3 topics9 sub-topics
ESS FlashcardsExam technique guide

What Unit 9 covers

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.

Topics in Unit 9

9.1

Environmental Law

3 sub-topics

9.2

Environmental Economics

3 sub-topics

9.3

Environmental Ethics

3 sub-topics

Study tip: Work through the topics in order — each builds on concepts from the one before. Start with notes, then reinforce with flashcards and practice questions.

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Unit 8All ESS HL units