IB Group 2 Language ab initio SL only The Environment Weather climate change conservation sustainability

What This Is and Why It Matters for IB

Climate Change is a pressing global issue that affects the environment, human health, and the economy. It appears in the Environmental Systems and Societies (ESS) syllabus, specifically in the Assessment Objectives (AOs) for Paper 1 and Paper 2. Students often get wrong the relationship between climate change and human activities, leading to ⚠️ oversimplification or incorrect conclusions. Failing to understand this topic can result in losing marks or misunderstanding key concepts.

Where It Appears in the IB Syllabus

Environmental Systems and Societies (ESS) - Paper 1: Multiple Choice and Short Answer Questions
- Paper 2: Structured and Extended Response Questions
- Internal Assessment (IA): Environmental Investigation

Key Command Terms

• Analyse: Break down complex information into smaller parts to understand relationships and patterns.
• Evaluate: Assess the value or quality of something based on evidence and criteria.
• Compare and Contrast: Identify similarities and differences between two or more concepts, ideas, or phenomena.

Step-by-Step Understanding

1. Recall the greenhouse effect: Understand how greenhouse gases trap heat in the atmosphere.
2. Identify human activities contributing to climate change: Recognize the role of fossil fuel burning, deforestation, and land-use changes.
3. Explain the consequences of climate change: Describe the impacts on ecosystems, human health, and the economy.
4. Avoid oversimplifying the relationship between climate change and human activities: Recognize the complexity of the issue and the need for evidence-based conclusions.
5. Apply the concept to an exam question: Use specific examples and evidence to support your answer.

Assessment Criteria Connection

Real Student Mistakes

Example 1

Student: "Climate change is caused by burning fossil fuels." Why it lost marks: The student oversimplifies the relationship between climate change and human activities.
Correct approach: "Climate change is a complex issue, and while burning fossil fuels is a significant contributor, other human activities such as deforestation and land-use changes also play a role."

Example 2

Student: "Climate change will lead to the extinction of all species." Why it lost marks: The student makes an unsubstantiated claim without evidence.
Correct approach: "Climate change is likely to lead to the extinction of many species, but the extent of the impact is still being researched and debated."

Exam Technique (Paper-specific)

• Timing allocation: Allocate 30-40 minutes for each question in Paper 2.
• Structuring a response: Use an essay outline to organize your thoughts and ensure a clear answer.
• Linking to command terms: Use command terms such as analyse and evaluate to guide your response.

Internal Assessment / Extended Essay Relevance

This topic connects to the Environmental Investigation in ESS, where students investigate a real-world environmental issue. Students can apply their understanding of climate change to design and conduct an investigation that evaluates the impact of human activities on the environment.

TOK Connections (if applicable)

This topic links to the Natural Sciences area of knowledge and the Empiricism way of knowing. Sample TOK discussion question: "To what extent can scientific evidence alone provide a complete understanding of climate change?"

Quick Check (Self-Assessment Questions)

1. What is the primary cause of the greenhouse effect?
   • Model answer: The primary cause of the greenhouse effect is the trapping of heat in the atmosphere by greenhouse gases.
2. What are the main human activities contributing to climate change?
   • Model answer: The main human activities contributing to climate change are fossil fuel burning, deforestation, and land-use changes.
3. What are the consequences of climate change?
   • Model answer: The consequences of climate change include impacts on ecosystems, human health, and the economy.

Revision Card (60-Second Summary)

• Greenhouse effect: trapping of heat in the atmosphere by greenhouse gases
• Human activities contributing to climate change: fossil fuel burning, deforestation, and land-use changes
• Consequences of climate change: impacts on ecosystems, human health, and the economy
• Command term: analyse and evaluate
• Key concept: climate change is a complex issue with multiple causes and consequences

If You Get Stuck

• Review the greenhouse effect: Understand how greenhouse gases trap heat in the atmosphere.
• Ask your teacher or study group: Clarify any doubts or misunderstandings.
• Approach an exam question: Use specific examples and evidence to support your answer.

Related IB Topics

• Biodiversity: Understand the impact of climate change on ecosystems and species.
• Ecosystems: Recognize the interconnectedness of ecosystems and the impact of human activities on the environment.
• Human impact on the environment: Evaluate the impact of human activities on the environment and propose solutions.