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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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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

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 use and withdrawal of water and rate of recycling and reuse of water

Save Water (SDG6)

Societal Services

Providing water and sewage services, including water collection and distribution, water treatment systems and sewage treatment facilities

Water and Sewage

Ensure renewable, reusable, non-toxic resources are utilised as materials and energy in an efficient way

Prioritise regenerative resources

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

Replace freshwater with less impactful alternatives and enact water efficiency measures

Regenerative water

Engage with the government on circular policies and programmes

Government collaboration

Enacting measures that optimise water use

Water efficiency

Participating in government programmes that support and advance the circular economy

Government programmes

'Regulate' changes the rules of the systems to achieve compliance through enforcement. 


Regulate

 Regulation

Environmental assessment & permits

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

Communities

Water system refers to the water supply network for storing and supplying water for use by the community.

One of the greatest challenges of a city is to provide its inhabitants with safe, clean water from a limited fresh water supply. Improving the city’s water infrastructure efficiency, such as minimising leakages, reduces the strain put on the limited supply, which in turn, helps to ensure inhabitants gain access to clean and affordable water.

The water infrastructure of a city typically consists of components such as surface water diversions, wells, pumps, transmission pipes and canals, treatment and storage facilities, and distribution network elements (Burian et al.). Options for improving the efficiency of the system include investing in water loss reduction systems, creating and following a regular maintenance program, and better matching water supply and demand (Global Water Partnership).

Cities can improve the efficiency of their water system infrastructure by conducting a water audit, in which all water flows are traced and losses in the system are identified to map where the most efficiency improvements can be gained. Alongside this, asset management can be used to create a short-term and long-term strategy of investing in new equipment, refurbishing existing equipment and developing maintenance programmes to ensure infrastructure is as efficient as possible, and leaks are minimised. Such management programmes create financial transparency amongst all stakeholders and provide useful long-term planning for larger infrastructure changes (US EPA)

💧 Water Systems

One of the greatest challenges of a city is to provide its inhabitants with safe, clean water from a limited fresh water supply. Improving the city’s water infrastructure efficiency, such as minimising leakages, reduces the strain put on the limited supply, which in turn, helps to ensure inhabitants gain access to clean and affordable water.

The water infrastructure of a city typically consists of components such as surface water diversions, wells, pumps, transmission pipes and canals, treatment and storage facilities, and distribution network elements ([Burian et al.](https://www.sciencedirect.com/science/article/pii/B9780123847034005098)). Options for improving the efficiency of the system include investing in water loss reduction systems, creating and following a regular maintenance program, and better matching water supply and demand ([Global Water Partnership](http://www.cawater-info.net/policybriefs/pdf/tec_brief_4_water_efficiency.pdf)).

Cities can improve the efficiency of their water system infrastructure by conducting a water audit, in which all water flows are traced and losses in the system are identified to map where the most efficiency improvements can be gained. Alongside this, asset management can be used to create a short-term and long-term strategy of investing in new equipment, refurbishing existing equipment and developing maintenance programmes to ensure infrastructure is as efficient as possible, and leaks are minimised. Such management programmes create financial transparency amongst all stakeholders and provide useful long-term planning for larger infrastructure changes ([US EPA](https://www.epa.gov/sustainable-water-infrastructure/things-local-officials-should-do-sustainable-water-infrastructure)).

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💧  Improving water infrastructure efficiency

Cities depend upon a limited fresh water supply. Although households are responsible for less than 10% of fresh water used globally, they have significant potential to influence water consumption. In addition to reducing the strain a city has on its fresh water supply, reduced household water consumption can reduce the demand on water infrastructure and in some cases, improve the availability for other households [SSWM](https://sswm.info/taxonomy/term/2658/reduce-water-consumption-at-home). 

Households can reduce their water consumption by behavioural change and by improving the efficiency of water-related equipment. Behaviour change consists of actions such as reducing shower time, using shorter cycle washing machine settings, and only using a dishwasher at full capacity. Improving the efficiency of water-related equipment can be achieved by actions such as repairing or replacing a leaking toilet, installing a water saving shower head, and replacing an inefficient washing machine with a more efficient alternative.

Cities can play a role in reducing household water consumption in many different ways. Non-price mechanisms can be used, in which water reduction is achieved without penalising households financially. This includes actions such as creating water conservation campaigns, prohibiting certain water uses (e.g. hose pipes), installing water management devices in households to restrict water to a sustainable level and restricting water centrally in more extreme circumstances. However, price-based mechanisms can also be used in which the household is subject to varying water tariffs depending on the fresh water availability [(Matikinca et al.)](https://iwaponline.com/wp/article/22/3/483/74194/Drought-response-impacts-on-household-water-use).

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💧 Reduce water use in households

Regenerate strategies phase out hazardous or toxic materials and processes and substitute them with regenerative biomass resources. A circular economy aims to mimic natural cycles—by shifting to more regenerative farming practices, for example—while also maximising the share of circular biomass that enters the economy. Regeneration can happen both at the systems level (by designing regenerative processes) as well as at the product level (by switching synthetic to organic fertilisers, for example).

Regenerate

Impacts

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Industries

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A framework of policy instruments that enabled and encourage the transition to the circular economy

Policy Instruments

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A framework of policy instruments that enable and stimulate the transition to the circular economy

The principles of a circular economy concern designing out waste, regenerating ecosystems and keeping items in use. Decoupling the economy from material flows—improving the rate of resource productivity faster than the economic growth rate—is also a consistent guide. By evolving with the growing number of applications of circular economy principles, and consolidating these strategies across thematic areas, Circle Economy’s Key Elements Framework (KE) renders the elements of the circular economy salient and serves as a basis to derive contextual strategies and interventions. 


The Framework consists of:
- Core Elements: Activities directly handling product or material flows; and uniquely,
- Enabling Elements: those that remove obstacles for core actors.


Key elements of the circular economy

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Circle Economy's framework of strategies and activities that define the circular economy

The Circular City Actions Framework provides urban changemakers with five complementary strategies they can use to start working towards a more circular system. 

The framework is action-based to provide users with concrete strategic directions and showcase the desired outcomes of each strategy. 
The framework consists of five complementary **strategies**, under which **sub-strategies** provide further detail. Finally, each sub-strategy consists of a diversity of tangible **solutions** which are framed in relation to key thematic areas. 

Note: solutions are currently focused on:
- 🍏 **Food systems**
- 🏢  **Built environment**
- 👕📱  **Consumer goods**
- ⚡ **Energy Systems**
- 🚌 **Mobility Systems**
- 💧 **Water Systems**

More thematic areas are coming soon...

'Click through each of the five strategy cards below to explore the framework and circular economy case studies in more depth!'



This framework was developed in collaboration with ICLEI, Metabolic and Ellen MacArthur Foundation with support from the MAVA Foundation. Read more about it [here]( https://circulars.iclei.org/action-framework/). 



Circular City Actions Framework

An action-based framework for local governments working towards circular cities

Thematic Areas

City Stakeholders

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Based on the work of [Bocken et al. (2016)](https://www.researchgate.net/publication/309699661_Product_design_and_business_model_strategies_for_a_circular_economy), the Four Flows Framework serves as a simple framework for managing resource flows in a circular economy by using less (Narrow), using for longer (Slow), using again (Cycle), and using clean, regenerative materials and energy (Regenerate).

These different principles of circular economy can be applied to our socioeconomic metabolism: we can design stocks like buildings, infrastructure, machinery, and vehicles to be rich resource mines for the future, and design manufactured goods and consumables to be cycled and made regenerative. Furthermore, the focus must also centre on getting more value out of fewer materials. Achieving the aims of a circular economy—minimising material use, regenerating the Earth, and preventing material losses—can be done through these four key strategies mentioned above.

Source: Circle Economy. (2023). *[The circularity gap report 2023](https://www.circularity-gap.world/2023)* (p.22). Amsterdam: Circle Economy. 

Four Flows Framework

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     An official website of the European Union                    Back to the list The new European Consensus for Development reaffirms the EU and EU Member States commitment to boost the potential of cities as hubs for sustainable and inclusive growth and innovation, taking account of their wider rural communities and of balanced regional development. They are also committed to promote inclusive sustainable urban development to address urban inequality, focusing on those most in need, including those living in informal settlements and slums.
Indeed, with the relentless dynamics of urbanisation, global challenges including poverty alleviation, climate change and migration will mainly take place in urban locations. At the same time, urban areas are becoming spaces where mixing of cultures, exchange of knowledge, and innovative production is widespread. Well-managed sustainable urban development could offer solutions with the ability to transform global challenges into opportunities. Getting urban policies right holds the key to advancing sustainable development.
This factsheets stories show precisely what EU cooperation has done in that respect, and the tremendous work undertaken by various EU Delegations around the globe to promote the sustainable cities cause. Thanks to these Delegations for the time taken to design and fine tune these case studies.
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Africa

Togo

Lomé

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European Commission

Government of Togo

<p>The European Commission supported from 2007-2020 the Government of Togo by improving flood and wastewater drainage infrastructure in Lomé. The key objectives of the urban development plan were split into two phases to promote green and resilient cities.&nbsp;The European Commission will continue to work towards strengthening urban resilience.</p>

Drainage and wastewater infrastructure for resource efficiency in Lomé

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This collection has been built by a community of passionate researchers, students, and industry professionals as part of <a href="https://worldcirculartextilesday.com/" target="_blank">World Circular Textiles Day</a> (WCTD). 


World Circular Textiles Day takes place every year on 8th October.  Our vision is to galvanise the collective ambitions and goals of people, organisations and businesses to reach a fully circular textiles world by 2050. Our mission is to provide a framework for circularity stakeholders to develop and deliver a collaborative, evolving roadmap and to chart circularity’s momentum annually from the 8th of October until 2050.

What does fully circular by 2050 mean?
- Shared textile resources, in the form of products and raw materials, are kept in **continual circulation**.
- Virgin resources are **replaced with circular materials**.
- Dignity, equity, and equality for the **people** involved in all parts of the circular value chain.

We need to know where we stand today to chart how to get to 100% Circularity by 2050. What circular activity is currently happening in the textiles and apparel industry, and where in the world is it happening? The WCTD Collection aims to answer this question by building the world’s largest digital library of circular textiles case studies. 

World Circular Textiles Day is proud to be supported by our 2022-23 Circular Hero Partners:
[Lenzing](https://www.lenzing.com/), [Texaid](https://retailsolutions.texaid.com/), [Bank & Vogue](https://www.bankvogue.com/), [Usha yarns limited](https://ushayarns.com/), [The Conduit](https://www.theconduit.com/), and [Asia Pacific Rayon](https://www.aprayon.com/en/)

## Want to contribute to the WCTD Collection? Sign up and add your circular textiles activities.





World Circular Textiles Day

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This collection comes from the <a href="https://www.circle-economy.com/circular-jobs-initiative/" target="_blank">Circular Jobs Initiative</a>, an initiative of Circle Economy.

The workforce is an essential lever for transforming our economy from linear to circular. The Circular Jobs Initiative aims to maximise the employment opportunities offered by the circular economy. It provides practical support and insights to businesses and governments that want to adopt circular strategies that have a positive social impact.The Circular Jobs Initiative works through three focus areas: 

- Upskilling the workforce

- Quality of work

- Inclusive job opportunities 

CJI has defined circular jobs as any occupation that directly involves or indirectly supports one of the strategies of the circular economy. It distinguishes between three types of circular jobs: core, enabling and indirectly circular jobs.

**Core circular jobs** are all jobs that ensure the closure of raw material cycles, including jobs in repair, renewable energy, waste and resource management. 

**‍Enabling circular jobs** are jobs that remove barriers for and enable the acceleration and upscaling of core circular activities, including jobs that arise in leasing, education, design and digital technology. 

**Indirectly circular jobs** are jobs that occur in other sectors that do not play a direct role in furthering the transition to the circular economy but can still adopt circular strategies. They include jobs that provide services to core circular strategies, including jobs in information services, logistics and the public sector.

The Knowledge Hub Collection includes examples of circular jobs, publications, reports, case studies and policies different organisations, governments and businesses are already using to advocate for a person-centred circular economy. 

Visit the <a href="https://www.circle-economy.com/circular-jobs-initiative/" target="_blank">Circular Jobs Initiative</a>

Visit the <a href="http://jobsmonitor.circle-economy.com/" target="_blank">Circular Jobs Monitor</a>

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Circular Jobs Initiative

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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 the quantity or quality of jobs, and shifts in the labour market

Jobs

Scalability

Minimise waste through diversion: Instead of sending waste to landfill, it is redirected into other industrial processes for handling, treatment, recycling, recovery, or reuse in various forms. 

Minimise waste through design: At the outset of a process of project, plan and design such that there is zero waste or minimal waste during production, use, and at end of life. 

Minimise Waste (SDG12)

Producing textile and leather products and processing them into apparel and accessories

Fashion and Textiles

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

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

Use waste as a resource

Give products and parts another life after their end-of-use

Maximise lifetime of products after use

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

Industry collaboration

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

Open loop collection

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

Using open loop recycled materials

Govern the Transition

Institutional design to enable circularity

Monitoring & enforcement

Asset Management

Maintenance to extend useful life

Economic Frameworks

Extended Producer Responsibility

VISION:
Products and services are designed for multiple use and material value retention, with maximum positive impact.

DETAIL: 
Imagine a time when…products flow via optimal collection and distribution streams into reusable and repairable product platforms. Reuse and access models are dominant, and products are designed for multiple recirculation before biodegrading (if designed to do so), or being broken down into reusable raw materials for production. People only consume what they need. Production and consumption wastes have been fully eliminated and multifunctional, season-less and timeless fashions are the norm, yet still fulfil our human need for expression and creativity without constraint. All business models, organisations, governments and citizens play a role in maintaining a healthy, functioning circular ecosystem.

Products and Services

Slow strategies aim to keep materials in use for as long as possible, for example through design for durability and repairability. A more circular economy is also a slower one: materials, components, and products—and even buildings and infrastructure—that we lock in stocks are made to last. This will lower material demand in the long run, in essence also serving to narrow resource flows.

Slow

Cycle strategies aim to cycle and reuse materials at their highest value: they maximise the volume of secondary materials re-entering the economy, ultimately minimising the need for virgin material inputs and therefore also narrowing flows. Of course, virgin materials will always be needed to a degree: all materials degrade and can’t be cycled infinitely, use energy, and require blending with virgin materials to maintain strength and functionality.

Cycle

CE Materials

Materials

Nace Sectors

Topics

Urban Opportunities

Whilst no two countries are the same, there are still obvious similarities between some of them, with discernible development patterns and parallels in evidence. Common problems and shared solutions help place unique country identities and individual issues in context.

Whilst this classification is far from clear-cut and exhibits some overlap, it does underline how the discourse on transitioning to a circular economy needs to account for both differences and commonalities, if we are to arrive at a more strategic and instructive analysis. It also allows to highlight a set of key themes that are likely to be central to the countries that fall under the respective profiles. 

Country profiles (Build, Grow, Shift)

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A framework to distinguish between different country profiles and their circular transition needs.

Browse case studies by type of implementing stakeholder.

Implementing stakeholders

80+ circular strategies for product development 
organised hierarchically into three tiers
with tier 1 and tier 2 based on the Key Elements Framework

DISRUPT

It is 2050.  Full systems change has taken place. This wouldn’t have been possible without the immediate action and radical steps taken from 2020 onwards. Many targets had to be identified in the early 2020s and achieved by 2030 to ensure that the 2050 goal happened in full. A sense of urgency, turbo stakeholder collaboration, supportive government regulation and clear, data driven targets enabled the mindsets and systems change needed to transform to a fully circular textiles ecosystem.

A circular economics model underpins what we have created. It reflects and supports a living organism made up of makers, users and restorers, interacting across vibrant and interconnected networks. Checks and balances, alongside transparency and accountability, ensure a healthy system. Financial, environmental, and social metrics have the purpose of serving communities and the planet. There is shared ownership of profit and loss – across all three metrics – throughout the value chain.

This is what we’ve achieved over the last 30 years:

WCTD Themes

<p>To achieve sustainability targets, policymakers and practitioners in certain countries are introducing extended producer responsibility policy (EPR). Under such policy, producers are required to assume the costs of collection, treating, and recycling of their end-of-life products. EPR policy is generally lacking in the textiles industry, though in 2007, France was the first country to declare a legal framework for managing textile waste through EPR policy with the goal of holding textile producers responsible for the collection and recycling of end-of-use (EoU) clothing, linen, and shoes. Following France's example, other countries may follow suit and implement EPR policy as a means of managing post-consumer textiles. Without such measures and effective enforcement mechanisms to back them, producer accountability for waste management could continue to fall by the wayside.</p>