Where we will solve this challenge

Check out the map to see all the cities that face similar challenges in this area!

How can we reduce the carbon footprint of university operations by measures for circular economy?

Trondheim

NTNU has the environmental ambition to reduce its carbon footprint from all categories. Purchases of goods and service other than energy use and transportation adds up to 45% of NTNU’s total carbon footprint. We need more concrete solutions to reduce the impact from this category!

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How to promote circular economy and reduce the production of waste in Cannes?

Cannes

To improve quality of life in Cannes a new prevention programme was started. How can the Climathon contribute to this programme and promote circular economy and reduce production of waste in Cannes?

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How can we motivate citizens to practice responsible consumption?

Hong Kong

Hong Kong faces the huge issue of over consumption, which leads to more waste and increases the burden on landfills . How can responsible consumption become more attractive?

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Can you provide a missing link in creating Sydney’s circular economy?

Sydney

When we think of reducing waste we often the focus on recycling and resource recovery. Further up the ‘waste hierarchy’ are actions that avoid producing waste in the first place, or find novel uses for 'waste products'.

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How to create a Smart green-wetland in Marjaleria to adapt Castelló to effects of Climate Change?

Castellón de la Plana

The development of an inhabited area faces challenges such as energy and water, transport and construction, agriculture and food and economic development and tourism. How can these challenges be solved in a wetland area taking into account the protection of biodiversity and its sustainability?

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How to improve waste to resource pathway for Varaždin city and the citizens?

Varaždin

The city of Varaždin wants to improve waste separation to increase volumes of resource circulation through local economy; to improve the management of waste textiles, plastics and other materials in Varaždin so they keep on circulating efficiently and be a resource for the city and the citizens.

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How can we go from "take-make-dispose" model to Cyclical Economy in Nicosia?

Nicosia

The transition to a cyclical economy requires a change in focus on reuse, repair, renewal and recycling of existing materials and products. That previously considered "waste" can be converted into raw material.

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How can Lisbon reduce food waste and plastic waste production?

Lisbon

How can the Citizens, Businesses and Organizations of Lisbon reduce the use of Plastic & Food Waste, to design innovative ways to become a Green Smart City?

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How can a tech-enabled solution disrupt solid waste management in Egypt?

Cairo

Egypt’s trash is a commodity, just like oil or wheat. New approaches for waste collection and recycling can create green jobs. How can technology with innovative business models be combined to tap into “solid waste management” through the lense of the "circular economy".

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How can citizens fight against climate emergencies and create new opportunities for growth?

Carpi

Environment conservation, increasing energy demand and climate change adaptation are important topics linked together in the sustainable development of a community. Several innovative solutions are needed to solve emergencies, such as, water deficit during the summer, air pollution and floods.

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How can we scale up Agrobiodiversity?

Nova Gorica

In a time of climate change, biodiversity is what we need to assure food security & resilience. Seed Library is an effective mechanism for collecting and distributing seeds. The goal of Seed Library is to protect biodiversity in food system and promote public access to seeds.

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How can an aquaponic farm pack its produced foods in a climate-friendly and low-plastic way?

Wuppertal

Plastic packaging allows easy and safe shipping, as well as storage of various products and is widely used. But the consequent amount of packaging waste is a danger to the environment. So how can plastic waste be reduced or even avoided from packaging?

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How Can Sustainable Design Principles help Eliminate Single use Plastic Waste in London?

London

As cities continue to increase in number and size, business’s government and local authorities face increasing pressure to eliminate waste and improve resource management and efficiency. Research shows that improvements can lead to significant economic, social and environmental benefits.

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How can we empower Brisbane resident's to tackle climate change by reducing the waste they generate?

Brisbane

Teams are encouraged to develop business ideas, concepts and creations that provide Brisbane resident's with solutions to manage their waste using the top two tiers in the waste hierarchy; Avoid, Reduce and Reuse.

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How do we achieve a circular economy of plastic materials focusing on upstream prevention?

Lund

Plastics are both a blessing and the cause of a lot of problems. How can we change our usage of plastics to keep the benefits while limiting the problems?

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How do we make the economy more circular?

Traditional linear economy supports short-sighted design, conspicuous consumption, and inefficient waste handling. Cities are prime candidates for pioneering a new, long-term vision: The circular economy—which integrates sustainable production (across supply chains), as well as consumption.

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In the European Union’s framing of the circular economy, a circular economy model is emphasised whereby the “value of products, materials and resources is maintained in the economy for as long as possible, and the generation of waste minimised” through adopting strategies such as re-use, repair, refurbishing and recycling to extend the useful life of existing materials, components and products.

With the industrial sector being responsible for about 30% of global greenhouse gas emissions it is evident that our production systems need to decarbonize.

At present, two thirds of industrial emissions come directly from materials processes, irrespective of the energy mix used. Implementing circular approaches has the potential to reduce EU CO2 emissions associated with the production of steel, plastics, aluminium and cement by 60% in the next 30 years.

To achieve the climate targets, our economies need to reconfigure material flows. We need to move from a linear model based on a 'take-make-dispose' pattern to industrial systems and economies aligned with circular economy principles. According to the British Standard Institute (BSI), the idea of a circular economy cannot be reduced to a simplistic definition, as it proposes a different way of thinking about the structure of our economies. This definitional challenge is also a legacy of its antecedents which can be traced back to different schools of thought ranging from industrial ecology, performance economy, biomimicry, cradle to cradle, blue economy, regenerative design and natural capitalism.

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