CourseCourse QuestionQuestionDocumentDocument

IB Environmental Systems and Societies

Topic 1: Foundation

Topic 2: Ecology

Topic 3: Biodiversity and conservation

Topic 6: Atmosphere and climate change

6.1 Introduction to the atmosphere

6.1.1—Atmosphere boundary

6.1.2—Atmospheric circulation

6.1.3—Greenhouse gases and aerosols

6.1.4—Greenhouse effect

6.1.5 (HL)—Atmosphere as dynamic system

6.1.6 (HL)—Atmospheric pressure and altitude

6.1.7 (HL)—Milankovitch cycles

6.1.8 (HL)—Global warming and geological cycles

6.1.9 (HL)—Life and atmosphere evolution

6.2 Climate change—causes and impacts

6.3 Climate change—mitigation and adaptation

6.4 Stratospheric ozone

Topic 7: Natural resources

Topic 8: Human populations and urban systems

IB/ESS/HL//Concept/Topic 6: Atmosphere and climate change/6.1 Introduction to the atmosphere/6.1.8 (HL)—Global warming and geological cycles

Topic 6: Atmosphere and climate change

Syllabus: First assessment 2026
Section: —
Level: HL

Exam analysis

Most tested topics

Introduction to the atmosphere
Climate change—causes and impacts
Climate change—mitigation and adaptation
Stratospheric ozone