Geography · Year 6 · Human Footprint: Trade and Economics · Spring Term

The Environmental Cost of Global Trade

Students will investigate the environmental impacts of transporting goods across vast distances, including carbon emissions and pollution.

• National Curriculum Attainment Targets
• KS2: Geography - Human Geography
• KS2: Geography - Environmental Change

About This Topic

The environmental cost of global trade explores how moving goods across oceans and continents generates carbon emissions, air pollution, and habitat loss. Year 6 students trace a product's journey, such as a t-shirt from Bangladesh cotton fields to UK shops, identifying transport modes like container ships and lorries. They calculate approximate CO2 outputs using simple tools and link these to climate change, matching KS2 human geography and environmental change standards.

Students compare local produce, like UK apples, against imports, discovering air freight emits up to 50 times more CO2 per kilogram than sea transport. They assess wider impacts, including packaging waste and resource depletion, and propose solutions like shorter supply chains. This develops evaluative skills for real-world decisions.

Active learning excels with this topic. Mapping journeys on large world maps, debating trade-offs in pairs, or prototyping low-emission packaging turns data into personal insights. Hands-on tasks reveal complexities, build persuasion skills, and motivate sustainable choices.

Key Questions

1. Evaluate the environmental footprint of a product's journey from production to consumption.
2. Compare the environmental impact of local versus globally sourced goods.
3. Design strategies to reduce the environmental cost of global supply chains.

Learning Objectives

• Analyze the primary modes of transport used in global supply chains and their associated carbon footprints.
• Compare the environmental impacts, including carbon emissions and pollution, of locally sourced versus globally sourced products.
• Evaluate the environmental cost of a specific product's journey from raw material extraction to consumer purchase.
• Design a set of actionable strategies to mitigate the environmental impact of product transportation in supply chains.

Before You Start

Mapping Skills and Continents

Why: Students need to be able to locate countries and understand distances on a world map to trace product journeys.

Introduction to Climate Change

Why: Understanding the basic concept of greenhouse gases and their link to global warming is foundational for grasping the impact of emissions from transport.

Key Vocabulary

Carbon Footprint	The total amount of greenhouse gases, primarily carbon dioxide, released into the atmosphere by a particular activity or product's lifecycle.
Supply Chain	The entire process of making and selling a product, from the sourcing of materials to the delivery of the final product to the customer.
Container Ship	A large cargo ship designed to carry standardized intermodal containers, a primary method for international trade transport.
Air Freight	The transportation of goods by aircraft, often used for high-value or time-sensitive items, but with a significant carbon impact.
Local Sourcing	Procuring goods and materials from producers located geographically close to the point of consumption, often reducing transport distances.

Watch Out for These Misconceptions

Common Misconception

All transport methods harm the environment equally.

What to Teach Instead

Air freight produces far higher emissions than ships or trains due to fuel inefficiency. Mapping activities help students visualize differences and quantify impacts through group calculations and comparisons.

Common Misconception

Global trade has minimal environmental effects compared to production.

What to Teach Instead

Transport accounts for 14% of global emissions, often exceeding factory outputs for some goods. Tracing full journeys in collaborative maps reveals this hidden cost and corrects underestimation.

Common Misconception

Buying local always reduces environmental impact.

What to Teach Instead

Local food can have higher emissions if grown in heated greenhouses. Debates expose nuances, encouraging students to weigh multiple factors through evidence-based discussions.

Active Learning Ideas

Product Journey Mapping: T-Shirt Trace

Provide world maps and product fact sheets. Students mark production sites, transport routes, and emission hotspots for a t-shirt. Use class calculators to tally CO2 and discuss alternatives like local manufacturing.

50 min·Small Groups

Local vs Global Goods Debate

Divide class into teams. One side defends importing exotic fruits, the other local options. Teams prepare evidence on emissions and costs, then debate with teacher moderation and vote on best choice.

40 min·Whole Class

Supply Chain Strategy Design

Groups receive a scenario, like chocolate production. Brainstorm and sketch three ways to cut emissions, such as rail over air or reusable packaging. Present prototypes to class for feedback.

45 min·Small Groups

Emission Hotspot Simulation

Set up stations with toy vehicles representing ship, plane, lorry. Students 'ship' goods, logging emissions per mode. Compare totals and graph results to identify worst offenders.

35 min·Pairs

Real-World Connections

• Logistics managers at companies like IKEA plan the complex journeys of furniture from factories in Southeast Asia to distribution centers in the UK, selecting shipping routes and modes to balance cost and environmental impact.
• Consumers making purchasing decisions at supermarkets like Tesco are increasingly presented with options for locally grown produce, such as British apples versus imported varieties, allowing for direct comparison of transport distances.
• Environmental consultants analyze the life cycle assessment of products, including the emissions from shipping and air freight, to advise businesses on reducing their overall ecological impact.

Assessment Ideas

Exit Ticket

Provide students with a product, e.g., a smartphone. Ask them to list two modes of transport likely used in its journey and one environmental consequence of this transportation. Collect and review for understanding of transport impacts.

Discussion Prompt

Pose the question: 'Is it always better to buy local?' Facilitate a class discussion where students present arguments for and against this, referencing the environmental costs of transport versus potential local production impacts. Guide them to consider factors like seasonality and production methods.

Quick Check

Show images of different transport methods (container ship, cargo plane, lorry, train). Ask students to rank them from lowest to highest carbon emissions per tonne-kilometre. Discuss their reasoning, checking for accurate comparisons of transport efficiency.

Frequently Asked Questions

How to teach the environmental footprint of product journeys?

Start with familiar items like smartphones or bananas. Use interactive maps to plot routes from farms to stores, incorporating emission data from reliable sources. Follow with calculations and discussions to connect transport modes to CO2 outputs, reinforcing human geography links.

What activities compare local and global goods' impacts?

Organise debates or sorting tasks where students match goods to transport emissions. Provide data cards showing CO2 per kg for air versus sea freight. Groups present comparisons, highlighting when local sourcing wins and exceptions like seasonal imports.

How can active learning benefit teaching environmental costs of trade?

Active methods like journey mapping and role-play simulations make emissions tangible. Students physically trace routes or simulate shipments, collaborating to calculate and debate impacts. This builds deeper understanding, critical evaluation, and solution design skills over passive lectures.

What strategies reduce global supply chain emissions?

Promote rail and sea over air freight, source seasonally local goods, and use reusable packaging. Student-designed campaigns, like school pledges for low-emission choices, embed these. Track class progress with emission logs to show collective impact.