The Hidden Story Behind Everyday Stuff
🎯 Goal: Understand what LCA is, why it matters, and how to evaluate the environmental impact of products
🗂️ Course Outline
🧩 Part 1: What Is Life Cycle Assessment? (10–15 min)
- Definition: LCA is a method to evaluate the environmental impact of a product from creation to disposal
- Why it matters: Helps us make smarter, more sustainable choices
- Real-world examples:
- Comparing plastic vs. metal water bottles
- The journey of a t-shirt: cotton farm → factory → store → laundry → landfill
🔄 Part 2: The 5 Stages of a Product’s Life (15–20 min)
| Stage | Description | Example |
| 1. Raw Material Extraction | Getting natural resources | Mining metals, harvesting cotton |
| 2. Manufacturing | Making the product | Energy, water, chemicals used |
| 3. Transportation | Moving it around | Trucks, ships, fuel |
| 4. Use | How we use it | Electricity, washing, wear and tear |
| 5. End of Life | What happens after | Trash, recycling, composting |
🧠 Tip: Use a relatable item like a smartphone or pair of jeans to walk through each stage.
🧪 Part 3: Mini Activity (20–30 min)
- Students choose a common item (e.g., pencil, soda can, hoodie)
- In pairs or small groups, they:
- Map out its life cycle
- Identify environmental impacts at each stage
- Suggest ways to reduce harm (e.g., reuse, recycle, buy less)
⚖️ Part 4: Why It Matters (10–15 min)
- Big picture: Climate change, pollution, resource depletion
- Smart choices: How LCA helps consumers, companies, and governments
- Discussion: “Would you change how you shop or use things after learning this?”
🏁 Wrap-Up & Reflection (5–10 min)
- What surprised you?
- What product would you like to assess next?
- Optional challenge: Do a mini LCA at home (e.g., your backpack or lunch)
📄 Handout: “LCA Cheat Sheet”
- Definitions of each stage
- Space to sketch a product’s life cycle
- Reflection box: “What’s one change I can make?”

























