Summary of "A World Without Waste: Circular Economy | Climate For Change: Closing The Loop | Ep 2/2"

Circular Economy is an alternative to the linear "take-make-waste" model, emphasizing that all products and materials should be reused, recycled, or repurposed to eliminate waste.
Waste is viewed as a design flaw; resources should be given multiple lives, mimicking natural ecosystems.
Circular Economy integrates ecological sustainability with economic viability.

Prato, Italy is a historic textile recycling hub, processing 15% of the world’s recycled clothes.
- Clothes are collected, sorted by quality, color, and texture, then reused or mechanically recycled into raw materials like wool.
- The fashion industry is resource-intensive, contributing nearly 10% of global carbon emissions and using vast amounts of water.
Clothing rental services (e.g., in Singapore) extend garment lifespans by enabling multiple rentals, reducing the need for new clothes production and landfill waste.
Wearable technology in fashion:
- Designer Ryan Mario Yasin applies aeronautical engineering principles to create expandable garments for children that grow with the wearer, reducing waste and the need for multiple garments.
- Uses recycled materials (e.g., from waste bottles) and promotes emotional durability and sustainability.
- Expanding applications to maternity and elderly wear, with leasing models to extend garment life.

Researchers Javier Fernandez and Steliano Stritzas developed FLAM (fungal-like adhesive material), a bio-material made from abundant natural resources.
Biomaterials offer a sustainable alternative to plastics, which are cheap and fast to produce but environmentally damaging.
Biomaterials are biodegradable, recyclable, and produced via additive manufacturing (3D printing), mimicking natural processes and reducing waste.
Chitin and chitosan, derived from crustaceans or insects, have broad applications in agriculture, medicine, and food industries.
Sustainable sourcing of chitin from black soldier flies (BSF) is being developed to reduce reliance on marine resources.

BSF larvae efficiently convert food waste into valuable products like animal feed and fertilizer.
In Singapore, selective breeding has produced BSF strains adapted to urban environments and smaller breeding spaces.
BSF byproducts yield high-value biomaterials such as:
- Chitin and chitosan: used in pharmaceuticals, agriculture, and medicine.
- Melanin ("black gold"): biocompatible pigment with potential in electronics, medical imaging, and cancer diagnosis/treatment.
The BSF approach exemplifies a Circular Economy by transforming food waste into valuable materials, reducing landfill and carbon footprint.

E-waste contains precious metals (gold, silver, lithium, manganese) critical for technology but limited in supply.
Traditional recycling (pyrometallurgy) is energy-intensive, costly, and polluting.
New methods use hydrometallurgy, employing water-based, environmentally friendly solvents (including organic acids from fruit peels) to extract metals at lower energy costs.
Singapore’s research collaboration with France’s CEA aims to develop scalable, low-impact recycling processes to recover materials for new lithium-ion batteries.
Circular Economy in e-waste addresses resource scarcity and toxic waste issues.

Buildings consume 35% of global energy and 40% of resources; circular design aims to reduce this footprint.
Miniwiz (Taipei) creates building materials and fixtures from recycled industrial and consumer waste, including medical waste.
Modular, rapidly assembled hospital wards made from recycled materials demonstrate practical circular design.
Architect Jason Pomeroy advocates for multi-functional, adaptable buildings that maximize resource use and extend life cycles.
Singapore’s conservation of heritage buildings and new zero-energy buildings (e.g., National University of Singapore’s School of Design and Environment) exemplify circular building practices.
Urban planning projects (e.g., Sungai Kadut industrial estate) explore circular industrial ecosystems with integrated logistics, overlapping industries, and community amenities.

Community-run BSF facilities in Singapore engage residents in food waste recycling, turning waste into fertilizer and animal feed.
This approach reconnects urban populations with sustainable, circular agricultural practices.
Education and behavior change are crucial to advancing Circular Economy principles at societal levels.

Textile recycling: collection → sorting (quality, color, texture) → reuse or mechanical recycling.
Clothing rental: subscription model → curated selection → multiple rentals → return and recirculation.
Wearable tech: design expandable garments → use recycled materials → promote leasing and reuse.
Biomaterial production: extract chitin from BSF →