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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

Reduced green house gas emissions released into the biosphere

Reduce Emissions (SDG13)

Producing and providing leisure and personal products and services for consumers, such as cleaning products, sports equipment and toys, personal and beauty care products, as well as domestic and personal services such as caretaking, cleaning, hairdressing and other beauty treatment, funeral and related activities

Personal Products and Services

Consider opportunities to create greater value and align incentives that build on the interaction between products and services

Rethink the business model

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

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

Information campaigns

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

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Rethink

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

The food system nourishes populations and employs 50% of the global workforce, but:
- it currently drives a quarter of the overshoot on the climate change planetary boundary due to its greenhouse gas (GHG) production, 
- animal farming alone uses over one-quarter of all land, equivalent to the size of the Americas,
- nearly a quarter of freshwater resources are lost due to rampant food waste, and
- it is the single largest driver of biodiversity loss.

A circular food system must address the whole value chain, from production to consumption to waste management. The four key solutions for the food system are:
- Put healthier, satiating foods first: Prioritise satiating and healthy foods with a lower environmental impact—ideally shifting calories from meat, fish, and dairy towards cereals, fruits, vegetables, and nuts.
- Go local, seasonal, and organic: Prioritise the production and consumption of local, seasonal, and organic produce (sometimes in combination with GMO to reduce pests and disease loss on crops), which can lead to a significantly reduced need for chemical inputs, fuels, and processing services that contribute to environmental impacts.
- Mainstream regenerative agriculture: Scale up agricultural practices that regenerate ecosystems, recirculate nutrients and sequester carbon by design. 
- End avoidable food waste: Minimise food loss and valorise waste following the food waste hierarchy along the supply chain and at the consumer level through better management of transport and storage, more refrigeration and smart planning, and technology at the consumer and food service levels.



🍏 Food Systems

Cities consume about 75% of global energy and emit between 50% and 60% of global greenhouse gases (UN-Habitat). To reduce the negative impact of their energy consumption, cities need to shift away from fossil fuels and move towards renewable energy sources. Such a shift will help cities work towards their climate change mitigation and adaptation action plans. Renewable energy technologies such as wind, water, solar, and geothermal can also help improve access to energy in vulnerable and marginalised neighbourhoods through, for example, decentralised, off-grid solutions.

Renewable energy technologies can harvest the energy in nature’s processes, such as wind, and solar radiation and geothermal heat, that can be replenished within a human lifespan. In contrast, fossil fuels are materials that are not replenished within a human lifespan and are combusted for energy, losing the fuel material and resulting in emissions.

Local governments can develop sustainable energy plans, considering different energy resources and requirements, to develop a robust strategy for the development of renewable energy technologies and infrastructure throughout the city. They can also institute specific legislation and tax systems to regulate energy production and consumption, incentivise research and development of cleaner, more efficient technologies. Via Power Purchase Agreements cities can buy renewable energy from green energy providers and fix the price in order to provide security to financial institutions to finance renewable energy infrastructure. Furthermore, increasing awareness and facilitating capacity-building on planning urban sustainable energy projects can help the uptake of clean energy across the city by different stakeholders—from citizens to businesses and institutions. Facilitating collaboration, then, will be crucial, since private companies operate most of the world’s energy systems.


⚡ Energy Systems

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

Manufactured goods, such as vehicles, textiles, appliances and equipment and their associated production processes are big employers but:
- production processes often rely on fossil fuels and currently drive one-third of the overshoot on the climate change planetary boundary due to its GHG production, 
- material- and energy-intensive industrial activities are linked to deforestation and drive 15% on both the land use and freshwater planetary boundaries, 
- manufacturing goods results in substantial amounts of hazardous industrial waste and leaks chemicals into the environment.

Here, circular solutions must tackle the full value chain, but material demand must also shrink: this will necessitate a societal shift to favouring sufficiency over excess and reducing consumption to sustainable levels. Our four key solutions for manufactured goods are:
- Mainstream industrial symbiosis and efficiency : Achieve process improvements, scrap diversion and reduction in yield losses through greater industrial symbiosis and efficiency. Foster tighter collaboration within and between industries to deliver powerful material and emissions savings.
- Extend the lifetime of machinery, equipment, and goods: Maximise the lifetime of goods that serve our daily needs to bring a number of environmental benefits. 
- Buy what's needed: Reduce the number of purchases of common electronic goods, appliances, and other equipment to sufficiency levels. 
- Eschew fast fashion in favour of sustainable textiles: Drastically reduce new clothing purchases. All used clothing should go on to be repaired, reused or, if needed, recycled appropriately. Prioritise natural and local textile manufacturing, as well as higher-quality and more durable garments. 




👕📱 Consumer Goods

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

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

△Rethink

△Sustainable lifestyles

The industrial production and consumption of highly processed food products places increasing pressures on land- and water use and is a driving cause of global greenhouse gas emissions. Local governments can play an important role in encouraging residents to shift towards local, healthy, and sustainable diets that can improve the health of the planet, as well as residents. Particularly, plant-based food choices have relatively low ecological impacts. 

Some examples of how cities have supported healthy and sustainable food choices include:


Low-impact food choices

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

This is a survey that dives into understanding the policy environment around specific circular solutions. 

The survey is divided into five sections, based on the five key elements of the Circular Cities Action Framework. 
Each section asks 2-3 questions to explore which policies may or may not be present within your city to support a transition towards a circular economy. 

You are not alone! Each question provides some practical examples from cities around the world that have adopted a certain policy to support their transition. This can help to compare with your city - is your city doing something similar?

The survey answers should be based on your current knowledge, and not illicit additional research - ! Please make use of the Not sure option as appropriate.


Ganbatte Cities Policy Tracker [Food]

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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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  Consumption-based emissions—the so-called indirect emissions associated with food choices, travel habits, supply chains and many more activities that keep cities running but are not directly tied to local production—are proving to be the blind spot of current mitigation efforts.
Cities eager to target consumption-based emissions should focus on the transition to sustainable lifestyles at the local level. Some cities are already working with experts and learning how to communicate efficiently about lifestyle shifts to a local audience – and there’s a lot more to learn.
For instance, at the end of last year, Turku, Yokohama and Nagano launched the 1.5-Degree Life Campaign, a global campaign that engages with youth groups to address consumption-based emissions. The campaign invites youth to creatively showcase how they lead their 1.5 degree lives in order to inspire others to also make lifestyle changes.
This campaign is inspired by the data about how much consumption-based emissions must be reduced if we are to achieve the goal laid out in the Paris Agreement of limiting global warming to 1.5°C. To reach that goal, per-capita lifestyles carbon footprints need to reach 2.5 (tCO2 e) by 2030, 1.4 by 2040 and 0.7 by 2050. 
As of 2017, per capita lifestyle carbon footprints were estimated to be 10.4 tCO2e in Finland and 7.6 t CO2e in Japan. With these numbers in mind, Turku, Nagano and Yokohama are aiming to use all tools at their disposal to address this challenge, starting with the 1.5-Degree Life Campaign.
In each city, youth were invited to submit videos that showcased their 1.5-degree lifestyle, the videos were shared widely across social media and finally, a winning video was selected.
“One of our main goals when starting this campaign was to showcase that there are many ways to transition to a 1.5-Degree Life. For some it is changing to use a hybrid car or to share rides, for some adding vegetables to meals and for some changing to a smaller apartment. We also wanted to showcase through videos that these lifestyle changes are not only good for our environment, they are also linked to health and well-being benefits and they can be fun!” says Lotte Suveri from the city of Turku.
Turku launched the campaign as a part of the Circular Turku project, reaching an audience of 215.000 people on social media channels such as Facebook, Instagram and Tiktok between Oct 2020 – February 2021. 12 videos were submitted, which by the end of the campaign had combined a total of 5000 views. The final ranking of the videos was based on the “Likes” on YouTube and the assessment of a local jury, composed of representatives from the city’s climate team and Turku´s Youth Council. 
In Yokohama, the top three videos pre-selected by a jury were seen over 2000 times. “We are very pleased that many young people participated in this video competition and thank all participants for their wonderful work. Through these efforts, I would like to continue to create the opportunities for people to enjoy learning about climate change mitigation.” says Eriko Yakushiji, Director General of the Climate Change Policy Headquarters for the city of Yokohama.
In Nagano City, 161 videos were submitted and collected over 1500 views. “In the midst of the COVID-19 pandemic, various public awareness events continued to be impossible, but the city of Turku proposed this project as a new method of enlightening global warming countermeasures, and Nagano City decided to join. One of the major achievements of the campaign is that so many people investigated the problem of global warming and thought about counter measures. In the future, we would like to make use of the submitted works to create an opportunity for more people to be aware of the problem of global warming” says Saori Matsuda from the Environment Department of Nagano City. 
Through the Circular Turku project, the ICLEI network has been supporting the campaign and connecting it to global climate action processes such as the UN Climate Change Conference COP26, during which ICLEI will convene a group of experts to discuss the challenges linked to localizing the transition to sustainable lifestyles and lessons learned on engaging with youth groups.
Watch the winning videos from Turku, Nagano and Yokohama.  

Turku

Yokohama

Nagano

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City of Turku

Municipality of Yokohama

City of Nagano

<p>The three cities of Turku, Finland, and Yokohama and Nagano, Japan, launched the 1.5-Degree Life Campaign at the end of 2020. The campaign aims to work with youth groups to reduce emissions stemming from consumption. Youth are invited to make creative materials on their "1.5 degree lifestyles", aimed at encouraging others to adopt similar practices.</p>