W2/L2: The Circular Economy

1. Why a New Type of Economy?

The linear economy (take-make-dispose) has led to:

• Resource depletion

• Environmental degradation

• Economic instability

• Social inequalities

A new type of economy, the circular economy (CE), is based on systems thinking—a holistic approach that sees economic activities as interconnected with natural systems.

2. Systems Thinking & Living Systems

A system is a set of interconnected elements working together for a purpose.

Principles of Living Systems

• Waste is a resource → Everything in nature is reused.

• Diversity in species = diversity in function → No single solution fits all.

• Regeneration occurs naturally → Living organisms restore balance.

• Use of renewable resources → Dependency on non-renewables is reduced.

• Cooperation & interconnection → Systems must work across multiple levels.

🔹 Example: Forests regenerate naturally; dead leaves decompose into nutrients.

3. What is the Circular Economy (CE)?

Definitions

1. Ellen MacArthur Foundation (2012):

   A restorative or regenerative industrial system that:

   • Eliminates waste through better design.

   • Shifts to renewable energy.

   • Minimizes toxic chemicals.

   • Optimizes materials and business models.

2. Kircherr et al. (2017):

   An economic system that replaces “end-of-life” with reducing, reusing, recycling, and recoveringmaterials at micro, meso, and macro levels.

   • Micro level: Products, companies, consumers.

   • Meso level: Industrial parks.

   • Macro level: Cities, nations.

🔹 Example: The sharing economy (e.g., Uber, Airbnb) maximizes resource use.

4. Three Key Principles of Circular Economy (EMF, 2015)

1. Design out waste & pollution → Plan products for longevity.

2. Keep materials in use → Repair, refurbish, and recycle.

3. Regenerate natural systems → Use biological cycles to restore ecosystems.

🔹 Example: Adidas Parley shoes are made from recycled ocean plastic.

5. The Butterfly Diagram (EMF, 2015)

The Butterfly Diagram represents two main cycles:

• Biological cycle → Renewable resources (compost, food waste).

• Technical cycle → Non-renewables (metals, plastics).

🔹 Example: Compostable packaging returns nutrients to the soil.

6. Circular Strategies – The R Framework

Several models describe circular strategies:

1. 9R Framework (Potting et al., 2017)

   • Refuse (avoid waste)

   • Rethink (optimize product use)

   • Reduce (minimize material usage)

   • Reuse (second-hand use)

   • Repair (fix broken items)

   • Refurbish (improve old products)

   • Remanufacture (create new from old)

   • Repurpose (use in a new function)

   • Recycle (break down materials)

2. 4R Framework (Kircherr et al., 2017)

   • Reduce

   • Reuse

   • Recycle

   • Recover

🔹 Example: Patagonia’s “Don’t Buy This Jacket” campaign promotes repairs instead of new purchases.

7. Building Blocks of the Circular Economy

1. Material Circulation

   • Technical & biological materials must circulate properly.

   • Better product design for easy disassembly and recycling.

2. Interventions for Implementation

   • Education & financing.

   • Collaborative platforms for sustainable business models.

   • Economic policies that promote circular practices.

3. Reverse Logistics & Infrastructure

   • Efficient collection & treatment of materials.

   • Reverse supply chains → moving materials back into production.

4. Business Models

   • Servitization: Selling services instead of products.

   • Leasing instead of ownership.

   • Subscription models for durable goods.

🔹 Example: Zipcar (car-sharing model) reduces car ownership.

8. Value in the Circular Economy

Economic Value

• Net benefit of €1.8 trillion by 2030 (Europe).

• USD 700 billion in the global consumer goods market.

• Material cost savings through recycling.

🔹 Example: Swappie (refurbished smartphones) cuts material costs.

Business Case

• Shift from consumption to use (e.g., Netflix streaming instead of DVDs).

• New collaboration models.

• Cost savings from material efficiency.

🔹 Example: London Olympic Stadium used repurposed oil pipelines to build the structure.

Environmental Value

• Less pollution & waste.

• Reduces dependence on non-renewable energy.

🔹 Example: Tesla’s closed-loop battery recycling reduces lithium mining.

9. Origins & Evolution of the Circular Economy

The CE is influenced by multiple schools of thought:

🔹 Example: Biodegradable plastics inspired by plant cellulose.

10. Criticism & Misconceptions of the Circular Economy

Misconceptions

1. “CE is just better waste management” → No, it's about eliminating waste.

2. “CE is all about recycling” → No, recycling is the last option; reuse and repair come first.

3. “CE is only about material efficiency” → No, it’s about redesigning the economy.

Criticism

• Rebound effect → People consume more when they feel less guilty.

• Focus on micro-level → Misses large-scale systemic change.

• Low-value waste management → Downcycling (instead of upcycling).

• Lack of social impact → Focus is mostly on environmental sustainability.

• Practical challenges → Businesses may lose interest due to high costs.

🔹 Example: Fast fashion brands claim to recycle, but produce more clothes.

11. Conclusion: The Future of the Circular Economy

• CE is based on regenerative, restorative thinking.

• Integrates multiple schools of thought (Ecological Economics, Industrial Ecology, etc.).

• Aims to eliminate waste and sustain ecosystems.

• Moves beyond the linear economy to a more resilient future.

🔹 Final Thought: