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Circle Economy and ICLEI have partnered up to initiate the go to knowledge hub of case studies about the circular economy in cities. The Cities Collection is a repository of case studies that demonstrate the role of cities in the circular transition, and includes policies, business cases and research articles. Cases in the Collection flow into an ecosystem of digital products which support users in transitioning cities to circularity, for example [Ganbatte](https://ganbatte.world/cities/) and <a href="https://circulars.iclei.org/" target="_blank">ICLEI Circulars</a>, both part of the <a href="https://circulars.iclei.org/circle-lab-for-cities/" target = _blank">Circle Lab for Cities Programme.</a>




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Circular Cities

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Rampant material extraction is pushing the ecosystems of Latin America and the Caribbean (LAC) to their limits. Over 11% of global raw materials are extracted within the region, yet it represents only about 8% of the world's population.

[*The Circularity Gap Report* (CGR) Latin America and the Caribbean](https://www.circularity-gap.world/lac), a first of its kind, demonstrates how the region can leverage the circular economy to tackle systemic inefficiencies in satisfying societal needs, conserve its unique natural wealth, and improve its people’s well-being.

To devise pathways for a circular transition, the report analysed the sectors where circular interventions could yield the most positive impact—environmentally, economically, and socially. This entails shifting to a circular food system, building a circular built environment, advancing circular manufacturing, transforming the energy system, reducing waste generation, and improve waste cycling.

[Circle Economy](https://www.circle-economy.com/) is a global impact organisation with an international team of passionate experts based in Amsterdam. We empower industries, cities, and nations with practical and scalable solutions to put the circular economy into action. Our vision is an economic system that ensures the planet and all people can thrive. To avoid climate breakdown, our goal is to double global circularity by 2032. Through the Circularity Gap Reporting Initiative, our mission is to deliver Circularity Metrics that measure the state of the global and national economy and identify key levers to transition to circularity. 

Latin America Collection

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Policy case

Impact on the availability of resources as well as their effect on living organisms, ecosystems, and components of the environment.

Ecological Impact

Impacts on the social fabric of the community and well-being of the individuals and families.

Social Impact

Impacts on the financial condition of a company, as well as the the economicconditions of its stakeholders and on economic systems at local, national, andglobal levels.

Economic Impact

Impact on increased knowledge and understanding as a result of the case study

Increase Awareness

Impact on the health and happiness of human populations

Well-being

Reduced green house gas emissions released into the biosphere

Reduce Emissions (SDG13)

Reduced use of fossil fuel energy sources and/or increased use of renewable energy

Reduce Energy Consumption

Producing transporation equipment and providing services for thetransportation of goods and people

Transportation and Logistics

Societal Services

Providing public and private education and support services at any level or for any profession, and governmental and public administration services, including judicial, regulatory, and legislative activities, taxation, defence, public order and safety, immigration services, foreign affairs and the administration of government programmes

Education and Government Services

Work together throughout the supply chain, internally within organisations and with the public sector and communities to increase transparency and create joint value

Team up to create joint value

Engage with the government on circular policies and programmes

Government collaboration

Engage internally to guide employees and facilitate greater knowledge sharing between internal divisions

Internal collaboration

Participating in government programmes that support and advance the circular economy

Government programmes

Facilitate discussions and meetings between internal team members to identify circular opportunities

Dialogue with internal stakeholders

'Mobilise' sets the direction of and builds momentum towards long-term change, while also determining how this direction is determined and governed.

Mobilise

Govern the Transition

Raise awareness and run information campaigns about  strategies for and impacts of the circular economy in different contexts.

Communication and awareness

Redesign systems to lay the foundation for circular activities and enable the transition to a circular economy 

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Rethink

Do better with less by using and supporting infrastructure, processes and products that are designed to minimize material, water and energy use and waste generation from production to end of use


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Reduce

Includes a variety of actions (e.g. campaigns, information sharing, public events) that encourage city residents and visitors to build sustainable practices into their daily lives

Enable sustainable lifestyles

Ensure that infrastructure and built assets in the city are designed and upgraded to be as resource-efficient as possible.

Design infrastructure and the built environment for resource efficiency

The built environment, including housing, commercial buildings, and the necessary infrastructure for mobility, is essential for our livelihoods, but:
- the extraction of minerals used to produce construction materials is responsible for a quarter of global land use change,
- approximately 40% of global GHG emissions can be attributed to buildings’ construction, use and demolition, and
- construction and demolition processes drive nearly one-third of all material consumption. 

Making the built environment more circular must prioritise a heavy reduction in material use—while also closing the loop on materials and bringing secondary and renewable material choices to the fore. Our four key solutions for the built environment are:
- Make the most of what already exists: Make the most of existing materials by reusing, repurposing, upgrading and renovating following circular approaches. Where new builds are needed, use secondary materials and be as efficient as possible with urban planning solutions that follow circular design principles so that buildings can be reused, repurposed, and easily disassembled in the future.
- Be as energy efficient as possible: From the design phase, utilise circular strategies to create material- and energy efficient buildings. Couple these designs with a rollout of clean energy solutions, and prioritise energy-efficient appliances and retrofitting. 
- Utilise secondary materials: Maximise the high-value reuse of buildings and components where possible. Ideally, enable the utilisation of construction and demolition outputs and ensure that as much of it as possible is recycled to avoid the need for virgin materials, such as sand and gravel.
- Prioritise circular materials and approaches: Transition to using renewable wood, timber or cross-laminated timber instead of steel and concrete, or move to other locally available materials. Utilise mainstream modular construction and prioritise lightweight frames and structures to reduce cement and steel use, as well as green roofs where possible.



🏢 Built Environment

The demand for transport is rising globally—but current modes are heavily material- and fossil-fuels-intensive. Emissions from the transport system could grow by 60% by 2050, and transport is the number-one user of oil worldwide. GHG emissions result not only in warming global temperatures, but also in ocean acidification, which has severe consequences for entire ecosystems and further destabilises our climate. The transport system also drives land-use change and biodiversity loss through the development of infrastructure—also releasing harmful pollutants into the ocean. Key circular solutions:

- Embrace and enable car-free lifestyles
- Invest in high-quality public transport
- Rethink unnecessary air travel
- Electrify remaining vehicles

🚌 Mobility Systems

Communities

Governments

Engage with the local community where facilities or offices are located

Community collaboration

Designing products that can easily breakdown and degrade in the environment

Design for bio-degradability

Replace energy sources with less impactful alternatives and enact energy efficiency measures

Regenerative energy

Selling parts of modular products that can be exchanged or replaced

Sale of exchangeable parts

Working together with stakeholders and parties in other unrelated industries to implement circular economy strategies and opportunities

Cross-industry projects, pilots

Designing to enable multiple uses and lifecycles of a product and its materials

Design for cyclability

Engaging in discussions with government bodies and policymakers to push for regulations that support the circular economy

Advocacy for circular economy policy

Using renewable energy like solar, wind, etc. or renewable fuels like biomass, etc.

Renewable energy, fuels

Designing products of multiple parts that can be easily exchanged

Design for modularity

Working together with industry peers to engage in business activities or exploratory projects that advance the circular economy

Joint industry ventures, projects, pilots

Providing products through sharing between consumers, customers, etc.

Peer to peer sharing

Transforming waste products into materials and lower value products within other industries

Open loop downcycling

Providing DIY repair kits or spare part programmes for enabling self-repair

Self-repair, spare part service

Engage and guide customers and consumers to ensure circular use of products

Customer / consumer collaboration

Transforming waste products, materials for reuse within the same industry

Closed loop upcycling

Designing to reduce waste during production and use

Design out waste

Allowing customers to alter and modify certain features of the product

Customisation

Generating energy from waste through processes such as anaerobic digestion, gasification, incineration, etc.

Generating energy from waste

Use digital, online platforms and technologies that provide insights to track and optimise resource use, strengthen connections between supply chain actors, and enable the implementation of circular models



Incorporate digital technology

While resources are in-use, maintain, repair and upgrade them to maximise their lifetime and give them a second life through take back strategies when applicable

Stretch the lifetime

Industry peers to industry peer collaboration to create joint value and identify synergies

Industry collaboration

Preserving and conserving biological products such as food, forests, etc.

Preservation, conservation

Working together with the community and engaging them in the company operations

Joint product development

Reuse, repurpose, and recycle waste streams within the same industry

Valorise waste streams - closed loop

Replacing freshwater use with rainwater, fogwater, seawater, etc.

Alternative water use

Initiatives with disadvantaged communities, minorities, people distanced from the labour market

Give-back programmes

Processing waste streams into fuels such as biogas, biofuels, pellets, etc.

Processing waste into fuel

Using bio-based materials such as bioplastics, mushroom-based materials, etc.

Alternative bio-based materials and inputs

Using waste materials that have been processed and recycled to produce new products within other industries

Using open loop recycled materials

Employ technologies to gather and analyse data to provide insights on resource use

Data and insights

Designing products so they produce as little waste as possible during production

Design for minimal waste

Takeback and return of products from customers after end-of-use

Takeback programmes

Transforming waste products, materials for reuse within other industries

Open loop upcycling

Upgrade, repair, and maintenance while in-use

Maximise lifetime of products in-use

Enacting measures that optimise water use

Water efficiency

Designing products that are made to last and to ensure longer use

Design for durability

Installing sensors to gather data from products and services to identify, enable and/or implement circular strategies (eg. effective resource use & logistics planning, circular business models & design)

Sensors, monitoring systems

Decentralised services that rely on the power of the crowd or the community

Crowd-based services

Marketplaces or services that enable the second hand sale of products

Second-hand sale, distribution

Collection programmes that process products and parts for reuse or recycling within other industries

Open loop collection

Engaging in discussions with customers to educate and raise awareness of the circular economy and explore circular opportunities together

Customer dialogue, marketing 

Integrating circular economy thinking into employee evaluations that are tied to professional compensation

Financial incentives tied to circular economy

 Develop research, structure knowledge, encourage innovation networks and disseminate findings with integrity


Strengthen and advance knowledge

Designing products so they are able to be easily repaired

Design for repair

Reuse, repurpose, and recycle waste streams within other industries

Valorise waste streams - open loop

Employ online platforms to connect and improve information sharing between stakeholders

Digital platforms

Using <a href="https://echa.europa.eu/information-on-chemicals" target="_blank">materials that are not toxic or hazardous</a>.

Non-toxic materials and inputs

Integrate principles of circularity into primary, secondary and tertiary curriculum and conduct workplace trainings

 Education and Curriculum

Account for the systems perspective during the design process, to use the right materials, to design for appropriate lifetime and to design for extended future use

Design for the future

Enacting measures that optimise energy use

Energy efficiency

Recover waste energy or generate fuels and energy from waste streams

Energy recovery from waste

Converting fossil fuel based operations to electric

Electrification

Collection programmes that process products and parts for reuse or recycling within the same industry

Closed loop collection

Selling high quality, long-lasting products

Sale of durable, long-lasting goods

Employing artificial algorithms and robotics to identify, enable and/or implement circular strategies (eg. effective resource use & logistics planning, circular business models & design)

Advanced robotics, artificial intelligence

Connecting products and services into the internet of things to identify, enable and/or implement circular strategies (eg. effective resource use & logistics planning, circular business models & design)

Internet enabled, connected operations

Utilise waste streams as a source of secondary resources and recover waste for reuse and recycling

Use waste as a resource

Developing or utilising online platforms to enable circular economy opportunities through information, product or service offering

Online platforms

Putting in place purchasing guidelines for procurement departments and evaluating suppliers on circular economy principles

Circular procurement

Key elements of the circular economy

<p>In a packed city of 8 million residents, the municipality of Bogotá noticed how drastically reduced their transportation pollution levels were during early COVID-19 regulations. Instead of allowing a return back to high levels like were seen pre-pandemic, Bogotá strove to keep their air pollution low while still recouping their economic and transport systems with a series of development and transport system interventions.</p>