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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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Starter Kit collection

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This collection features a selection of case studies, mainly based on the [2024 Circularity Gap Report](https://www.circularity-gap.world/2024). 

In this year’s Report, we shift from exploring the what to the how: exploring the different ways that we need to ‘change the rules of the game’ and create a set of conditions that discourage the overshoot of planetary boundaries and ‘undershoot’ of human development. This process has resulted in us spotlighting 12 of the original 16 solutions, highlighting the country profile that they are most relevant to, as well as placing people at the centre of this story for the first time. Based on extensive interviews and desk research, this Report aims to show governments and industry leaders that if they want to turn theory into action and scale an economy that delivers on needs within the safe limits of the planet, they need to dismantle harmful entrenched processes and align enabling elements. 

[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 an annual global Circularity Metric that measures the state of the world economy and identifies key levers to transition to global circularity. 

To learn more about these interventions to accelerate the circular transition, read the [latest Circularity Gap Report 2024](https://www.circularity-gap.world/2024), as well as previous editions of the global [Circularity Gap Reports](https://www.circularity-gap.world/global).

Global Circularity Gap Report 2024

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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

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

Save Water (SDG6)

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

Reduce Energy Consumption

Contributing to the improvement of biodiversity including species diversity, total number of protected species, and ecosystem health

Biodiversity

Producing agricultural products and processing them into food and beverageproducts for consumption

Agri/Food

Societal Services

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

Water and Sewage

Producing and gathering crop and animal products from land and water through farming, hunting, and fishing

Agriculture

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

Ensure that biological products are properly managed and preserved

Maximise lifetime of biological products

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

Preservation, conservation

'Manage' influences the use and function of physical and material elements within the urban environment. 

Manage

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


Regulate

Legislation

 Spatial Planning

Other legislation

Grow countries globally account for 55% of all raw material extraction and 52% of the material footprint, while housing around 37% of the global population.

These are larger Southeast Asian countries and countries in Latin America and Northern Africa, as well as those with an economy in transition in Eastern Europe, the Caucasus, and Central Asia.

Examples include :
- China
- Indonesia
- Brazil
- Mexico
- Vietnam
- Myanmar
- Egypt, ...

Large contribution to the overshoot of planetary boundaries—largely due to the consumptions of local materials in higher-
income (Shift) countries: these countries contribute 50% of climate change, 62% of nitrogen, 60% of phosphorus, 53% of freshwater use and 42% of land use change.

To find out what country profile your country belongs to, explore [this interactive story](https://circularity-gap.world) and search for your country on the final map.

Grow

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

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Rethink

**Harmonize with nature** by promoting infrastructure, production systems and sourcing that allows natural ecosystems to thrive




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Regenerate

Facilitate cross-collaboration by engaging city departments, industries and businesses on ambitious, closed-loop circular projects.

Support closed-loop systems and cross-sectoral synergies

Includes measures that protect and enhance ecosystems and biodiversity both within and beyond city boundaries, as well as actions to restore degraded ecosystems.


Protect and restore local ecosystems

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

Governments

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

Water is not only at the core of different public services cities provide, including application and sanitation, water also acts as a carrier of nutrients and energy which can benefit other urban systems. However, Global demand for freshwater will exceed viable resources by 40% by 2030, if we continue with business as usual ([ARUP](https://www.arup.com/-/media/arup/files/publications/w/water_and_circular_economy_whitepaper.pdf)). Exploring the synergistic link between water, food and energy in urban systems becomes central to sustainable development and the sustainable management of water. Urban changemakers in all three areas should start taking a more holistic approach to water management—from water resource management, to ecosystem protection and water supply and sanitation ([UN Water](https://www.unwater.org/water-facts/water-food-and-energy/)).

Bringing circularity within the food-water-energy nexus means recognising all urban water flows—drinking water, stormwater, wastewater and source water—as potential resources for use across these three sectors. Circular water systems can maximise synergies between food water and energy systems by protecting water availability to maintain agricultural production in water scarce regions, or by recovering energy from wastewater treatment, replacing fossil fuels used for cooking or heating. Solid organic matter, or biosolids, recovered from a sewage treatment can also be used as a fertiliser, preventing harmful chemicals from polluting water streams so that water sources are clean and safe to drink.

Local governments can govern the food-water-energy nexus by looking holistically at the city’s infrastructure. They can update city plans to integrate Green Blue Infrastructure (GBI) which can provide tangible benefits to each dimension of the food-water-energy nexus. Parks, green walls, waterways and greenways can, for example, provide food, water, fibre and fuel to support the urban ecosystem. Moreover, bringing different actors together, from the department of water resources, food safety, as well as energy and planning, is at the heart of any form of integrated planning. To spur cross-sectoral collaboration, for instance, cities can convene different actors on dedicated platforms and facilitate effective communication between different city departments and public organisations. Embedding a nexus strategy in municipal policy may lay a foundation for cross departmental budgeting and program implementation.


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💧 🍏 ⚡  Supporting solutions that maximise synergies between food water and energy systems

Based on extensive interviews and desk research, this Report aims to show governments and industry leaders that if they want to turn theory into action and scale an economy that delivers on needs within the safe limits of the planet, they need to dismantle harmful entrenched processes and align enabling elements - policy, finance, and people

- Get the economics right: Adjust fiscal policies and practices to create true prices and ensure that circular solutions are funded so that they can replace linear norms.





Finance

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).

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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São José dos Campos

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Municipality of São José dos Campos

<p>The city of São José dos Campos is home to the first Brazilian municipal Environmental Protection Area (EPA), the Banhado EPA, established in 1985. This EPA offers protection to the floodplains of the Paraíba do Sul river, which is a main water source for São José dos Campos. This protection has had direct positive impacts on water, soil, and air quality and on flood mitigation; and indirect positive impacts on water provision, as well as food and energy production. The EPA is a strong example of participatory management between the environmental movement and city representatives.</p>