IB ESS 6.4.7 Ozone depletion effects
IB ESS 6.4.7 Ozone depletion effects

IB Environmental Systems and Societies syllabusESS SL/HLFirst assessment 2026
Practise interpreting ozone-hole figures, describing recorded trends over time and linking ozone depletion to increased UVB exposure at the surface.
How this is tested
- describe changes in recorded ozone or ozone-hole data from a figure over time
- state the location of polar ozone holes and link depletion to higher UVB exposure
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