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IB ESS SL 1.2.14 Model Limitations Question Bank

Evaluate assumptions, uncertainty and limitations when interpreting an environmental model.

Syllabus
First assessment 2026
Course
ESS SL
Level
SL

Exam points

  • identify the threshold, model assumption or resilience factor
  • trace the feedback or disturbance pathway
  • evaluate system outcomes using evidence and uncertainty

1.2.14—Model limitations question 1

[Maximum number: 1]
Observed and projected changes in global stratospheric ozone

Figure:Observed and projected changes in global stratospheric ozone

Key:
- Annually averaged data
- Average of atmospheric model projections

Outline one factor that may affect the reliability of the model projections in the stratospheric-ozone chart shown above.

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