CourseCourse QuestionQuestion

IB Environmental Systems and Societies

Topic 1: Foundation

1.1 Perspectives

1.2.1—Systems definition

1.2.2—Systems approach

1.2.3—System diagrams

1.2.4—Types of flows

1.2.5—Open vs. closed systems

1.2.6—Earth as integrated system

1.2.7—System scales

1.2.8—Negative feedback loops

1.2.9—Stable equilibrium in ecosystems

1.2.10—Positive feedback loops

1.2.11—Tipping points

1.2.12—Tipping point effects

1.2.13—Models

1.2.14—Model limitations

1.2.15—Emergent properties

1.2.16—System resilience

1.2.17—Factors affecting resilience

1.2.18—Human impacts on resilience

1.3 Sustainability

Topic 2: Ecology

Topic 3: Biodiversity and conservation

Topic 6: Atmosphere and climate change

Topic 7: Natural resources

Topic 8: Human populations and urban systems

IB/ESS/SL//Concept/Topic 1: Foundation/1.2 Systems/1.2.18—Human impacts on resilience

Topic 1: Foundation

Syllabus: First assessment 2026
Section: —
Level: SL

Exam analysis

Most tested topics

Perspectives
Systems
Sustainability