HASS · Year 10 · Environmental Change and Management · Term 4

Climate Change: A Global Challenge

Investigate the science behind human-induced climate change, examining the evidence for it and its wide-ranging impacts on ecosystems, weather patterns, and human societies.

TL;DR:This topic tackles one of the most defining challenges of the 21st century, empowering your students to become critical thinkers and informed global citizens.

• ACARA Content Descriptions
• AC: Geography (Year 10) - Human-induced environmental changes that challenge sustainability

About This Topic

This topic aligns with the Year 10 Australian Curriculum for HASS, particularly within the Geography and Civics and Citizenship strands. It provides a critical inquiry into the causes, impacts, and responses to human-induced climate change, a key contemporary global issue. Students will move beyond a basic understanding of the greenhouse effect to analyse complex scientific data, fostering skills in geographical inquiry, data interpretation, and critical thinking. The curriculum requires students to investigate the ways that environments are changed and managed, and the environmental, economic, and social impacts of these changes.

By focusing on the global nature of the challenge, this topic encourages students to consider issues of sustainability, global citizenship, and international cooperation. The case study on the Pacific Islands provides a powerful, geographically relevant example of the disproportionate impacts of climate change, prompting students to consider concepts of social justice and responsibility. This unit empowers students to evaluate diverse perspectives on climate action, from individual choices to national policies and international agreements, preparing them to be informed and active citizens in a world facing significant environmental challenges.

Key Questions

1. Explain the greenhouse effect and the role of human activities in enhancing it.
2. Analyse data to identify trends in global temperatures and sea levels.
3. Evaluate the potential consequences of climate change for a specific region like the Pacific Islands.

Learning Objectives

• Explain the enhanced greenhouse effect and link it to specific human activities.
• Interpret and analyse climate data from graphs and maps to identify long-term trends.
• Evaluate the environmental, social, and economic consequences of climate change for a specific region.
• Analyse a range of local, national, and global responses to climate change.
• Construct an evidence-based argument regarding the causes and impacts of climate change.

Key Vocabulary

Greenhouse Effect	The natural process where certain gases in the Earth's atmosphere trap heat from the sun, keeping the planet warm enough for life.
Enhanced Greenhouse Effect	The strengthening of the natural greenhouse effect due to the increase in atmospheric concentrations of greenhouse gases from human activities.
Anthropogenic	Originating from, or caused by, human activity.
Carbon Sequestration	The process of capturing and storing atmospheric carbon dioxide to mitigate climate change.
Sea Level Rise	The increase in the average global sea level, primarily caused by the thermal expansion of seawater as it warms and the melting of glaciers and ice sheets.

Watch Out for These Misconceptions

Common Misconception

The hole in the ozone layer is the cause of global warming.

What to Teach Instead

The ozone hole and global warming are two separate issues. The ozone hole allows more harmful UV radiation to reach Earth, while global warming is caused by greenhouse gases trapping heat in the atmosphere.

Common Misconception

Weather and climate are the same thing.

What to Teach Instead

Weather refers to short-term atmospheric conditions in a specific place (e.g., today's temperature and rainfall). Climate is the long-term average of weather patterns over decades or longer.

Common Misconception

Climate change is just part of a natural cycle, so humans aren't responsible.

What to Teach Instead

While Earth's climate has natural cycles, the current rate of warming is unprecedented and scientific evidence overwhelmingly shows it is caused by human activities, primarily the burning of fossil fuels, which release greenhouse gases.

Common Misconception

A single cold winter or cool summer disproves global warming.

What to Teach Instead

Global warming refers to the rising trend in average global temperatures over a long period. Individual weather events, like a cold spell, do not negate the overall long-term trend of a warming planet.

Active Learning Ideas

Socio-Scientific Issues

Greenhouse in a Jar

Students create a simple model of the greenhouse effect using two jars, two thermometers, and a plastic wrap cover for one jar. By placing both in the sun, they can measure and graph the temperature difference, visually demonstrating how trapped heat increases temperature.

60 min·Pairs

Socio-Scientific Issues

Climate Data Detectives

Using real-world data sets from the Bureau of Meteorology (BoM) or CSIRO, students analyse and graph long-term trends in temperature, rainfall, and sea levels for a specific Australian capital city. They then write a summary of their findings, identifying the long-term climate trend.

90 min·Individual

Socio-Scientific Issues

Pacific Islands Summit

In small groups, students research the specific impacts of sea-level rise on a chosen Pacific Island nation (e.g., Tuvalu, Kiribati, Fiji). They then participate in a simulated international summit, presenting their findings and proposing solutions from their nation's perspective.

120 min·Small Groups

Real-World Connections

• The increasing frequency and intensity of bushfires in Australia, linked to hotter and drier conditions.
• Coral bleaching events on the Great Barrier Reef, which threaten biodiversity and the tourism industry.
• Changes to agricultural practices in regions like the Murray-Darling Basin due to shifting rainfall patterns and water availability.
• Australia's international relations and trade, particularly with Pacific Island nations directly threatened by sea-level rise.
• The growth of the renewable energy sector in Australia, including solar and wind farms, as a direct response to the need to reduce carbon emissions.

Assessment Ideas

Exit Ticket

An exit ticket where students must draw a diagram of the greenhouse effect and label the key components, including the role of anthropogenic gases.

Peer Assessment

A data analysis task where students are given graphs of global temperature, CO2 concentrations, and sea levels, and must write a report analysing the trends and correlations.

Peer Assessment

A research-based persuasive essay or presentation evaluating the effectiveness of the Paris Agreement in addressing global climate change.

Quick Check

Students use a rubric to evaluate their own contribution to a group project, such as the 'Pacific Islands Summit' activity, reflecting on their research and collaboration skills.

Frequently Asked Questions

How can scientists be sure that the climate data from a hundred years ago is accurate?

Scientists use a variety of sources to reconstruct past climates, a field known as palaeoclimatology. This includes direct measurements from historical weather stations, as well as proxy data from ice cores, tree rings, coral reefs, and sediment layers, which all provide reliable evidence of past atmospheric conditions.

What is the difference between climate mitigation and adaptation?

Mitigation refers to actions aimed at reducing the causes of climate change, primarily by lowering greenhouse gas emissions (e.g., switching to renewable energy). Adaptation refers to actions that help us cope with the impacts that are already happening or are unavoidable (e.g., building sea walls to protect against sea-level rise).

What can a young person in Australia actually do about climate change?

Individual actions, when multiplied, can have a significant impact. This includes reducing personal consumption, saving energy, choosing sustainable transport, and participating in school or community environmental projects. Importantly, young people can also be powerful advocates for change by staying informed, engaging in respectful conversations, and communicating their concerns to community leaders and politicians.