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Climate Change and Its Impacts

5 dot points across 5 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

What evidence shows that the Earth's climate is changing, and how do we know it is warming?

Describe the evidence that shows the Earth's climate is changing
A focused answer to the O-Level Geography outcome on the evidence for climate change. Rising global temperatures, shrinking ice and glaciers, rising sea levels, and longer-term proxy evidence such as ice cores and tree rings, with a worked walkthrough.
8 min answer →

How does climate change affect people, from farming and health to homes and livelihoods?

Describe the impacts of climate change on people and their activities
A focused answer to the O-Level Geography outcome on the human impacts of climate change. Effects on food and farming, water supply, health, homes and displacement, and the economy, and why poorer communities are most vulnerable, with a worked walkthrough.
8 min answer →

What are the natural and human causes of climate change, and how does the enhanced greenhouse effect work?

Explain the natural and human causes of climate change, including the enhanced greenhouse effect
A focused answer to the O-Level Geography outcome on the causes of climate change. The natural greenhouse effect, natural causes (solar and volcanic), and human causes (burning fossil fuels, deforestation) that drive the enhanced greenhouse effect, with a worked walkthrough.
9 min answer →

How does a warming climate change the physical environment, from sea levels to weather extremes?

Describe the physical impacts of climate change on the environment
A focused answer to the O-Level Geography outcome on the physical impacts of climate change. Rising sea levels, melting ice, more frequent extreme weather, ocean warming and acidification, and shifting ecosystems, with a worked walkthrough and named examples.
8 min answer →

How can people respond to climate change through mitigation and adaptation, and at what scales?

Explain how climate change can be tackled through mitigation and adaptation
A focused answer to the O-Level Geography outcome on responses to climate change. The difference between mitigation (reducing causes) and adaptation (coping with impacts), examples at global, national and individual scales, and why both are needed, with a worked walkthrough.
9 min answer →