IB ESS 1.3.13 Ecological footprints
IB ESS 1.3.13 Ecological footprints

IB Environmental Systems and Societies syllabusESS SL/HLFirst assessment 2026
Practise applying ecological footprint as a sustainability measure by comparing demand on land and water with available resources.
How this is tested
- compare ecological footprint with available land and water to judge sustainability
- explain why a footprint above available resources indicates unsustainable demand
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