The students are divided into different groups and work together to find out the CO2 impact of their assigned clothing item according to different resources.
The intention is for students to find out what clothing item has the most CO2 impact, and why this is the case.
After initial research, form new “matrix groups” with one member from each research group. In the matrix groups, students teach each other what they discovered about their specific item, using the Talking Stick method. Each matrix group now has a complete overview of all clothing items and their CO₂ impacts.
As a class, fill out a summary chart:
| Clothing Item | Estimated CO₂ (kg) | Main reasons for impact | Possible solutions |
| Cotton T-shirt | 2–3 kg | Farming, water, transport | Organic cotton, reuse |
| Polyester T-shirt | 5–6 kg | Oil-based, production energy | Recycled polyester |
| Jeans | 30 kg | Cotton farming, dyeing, washing | Fewer washes, longer wear |
Discuss in class:
| Investigate |