IB ESS HL Notes

Environmental Systems and Societies

Aimnova provides free IB ESS Higher Level revision notes for the 2024–2029 syllabus, covering all 8 units plus HL-specific extensions including Environmental Law, Ecological Economics, and Environmental Ethics. Each topic features detailed notes, key definitions, exam tips, flashcards, and practice questions with AI feedback.

IB ESS Higher Level extends the Standard Level course with deeper analysis, additional research methodologies, and three HL lenses. HL students face longer papers and must demonstrate more sophisticated evaluation skills.

Use the unit-by-unit structure below to revise systematically and ensure no HL-only material is missed before Paper 1 and Paper 2.

What's included

30+ topics across 8 units, aligned to the IB 2024–2029 syllabus
Concise notes with definitions, diagrams, and real-world examples
Spaced-repetition flashcards for every topic
IB-style practice questions with AI marking and feedback
SL and HL coverage with level toggle
Free to access — no account required for notes

How to use ESS HL notes

1Start with a unit overview. Click any Unit heading to see all topics and key themes for that unit.
2Read micro-topic notes. Each topic links to detailed, exam-aligned notes with definitions, diagrams, and examples.
3Test with flashcards. Every topic has spaced-repetition flashcards to lock key terms into your memory.
4Practise exam questions. Apply what you know with practice questions and get AI feedback on your answers.