Resources for the new (first exams 2026) IB ESS syllabus. THIS PAGE IS CURRENTLY UNDER CONSTRUCTION – SORRY FOR ANY WONKY PARTS!
Topic 1: Foundation
The essential foundations for ESS students. This topic includes Perspectives, Systems and Sustainability. Most content on the IB ESS course is framed within or based on these ideas.
Topic 2: Ecology
Ecology is the relationships among living organisms (including humans) and their environment.
Topic 3: Biodiversity and Conservation
In addition to considering what biodiversity is and how it can be quantified, ESS students also study how biodiversity arose through evolution, how humans influence biodiversity, and what we might do to help conserve it.
Topic 4: Water
Water systems support life on Earth. Students study how water is accessed and used, issues surrounding water security and equity, the aquatic food production systems we rely on, and water pollution.
Topic 5: Land
Topic 6: Atmosphere and Climate Change
Topic 7: Natural Resources
Topic 8: Human Population and Urban Systems
The Higher Level Lenses
The HL lenses are incorporated into each chapter.
Old Specification
Looking for the old workbooks (outgoing syllabus)? Visit the old ESS page