Circular economy: sustainable growth and resource conservation

Abstract

The circular economy replaces the linear "take - make - dispose" model with a system that keeps materials and products in circulation for as long as possible. Instead of consuming resources once, the focus is on reuse, repair and recycling. The aim is to structurally avoid waste before it is produced. The urgency of this change is measurable: Earth Overshoot Day in 2025 was already reached on July 24, and for Germany as early as May 3, 2025.

For companies, the circular economy offers far more than ecological responsibility. Reduced dependence on raw materials, new business models and greater customer loyalty are tangible economic benefits. The potential for value creation is predicted to be up to 12 billion euros per year and around 120,000 new jobs for Germany alone.

The political framework is in place: The National Circular Economy Strategy (NKWS) and the EU Action Plan, including the Ecodesign Regulation, digital product passport and right to repair, are creating binding standards that will accelerate the transition. However, the transition will only succeed if companies, politicians and consumers work together.

Definition, relevance and objectives

Definition and basic principles

The circular economy is much more than just a sustainability trend. It represents a fundamental rethink in the way we manufacture, use and treat products at the end of their life.

Essentially, it is about preserving the value of materials and products in the long term instead of disposing of them after a single use. As long as resources circulate within the economic system, they continue to generate added value without consuming new raw materials.

What that means in concrete terms:

• Share & lease: Products are not sold, but offered as a service or shared
• Reuse: Products and components are reused in their original form
• Repair & refurbish: defective or obsolete products are repaired instead of replaced
• Recycle: Materials are fed back into the production cycle at the end of their life cycle

This approach is in direct contrast to the so-called throwaway economy, in which large quantities of resources are used for short-lived products and then end up as waste.

The model is also becoming increasingly relevant from a business perspective. As part of the CSRD reporting obligations, the circular economy is a central element of the ESRS E5 standard (resource use and circular economy): Material use, waste rates, recycling practices and product design thus become relevant for measurement, control and reporting. Internationally, implementation is supportedby standards such as ISO 59004:2024, which provides companies with specific guidelines for implementing circular principles.

Differentiation from the linear economy

To really understand the circular economy, it is worth taking a look at the model that is supposed to replace it: the linear economy. The linear model follows a simple but problematic three-step process: take → make → dispose (take - make - dispose)

Raw materials are extracted, processed into products, used and then thrown away. The finite nature of the resources consumed in this process is largely ignored in this system. The result: growing quantities of waste, increasing dependence on raw materials and a growing burden on people and the environment.

A first step in the right direction: the 3R model

In response to this problem, the 3R model was introduced, which is an important but ultimately inadequate approach:

• Reduce: Reduce resource consumption through more efficient production and use
• Reuse: reusing products that still work instead of throwing them away
• Recycle: Processing materials and returning them to the production cycle

The 3R model improves the linear economy, but does not solve its fundamental problems. Recycling, for example, is often energy-intensive and leads to so-called "downcycling". Materials can only be used for inferior applications and gradually lose quality and value.

In concrete terms, this means that products are designed from the outset in such a way that they can be completely dismantled after use and their materials reused. In this model, waste is not an unavoidable by-product, but a design flaw that needs to be avoided right from the planning stage.

Raw material consumption and planetary boundaries

We live on a planet with finite resources and operate as if the opposite were true. Global consumption of raw materials has multiplied in recent decades, driven by a growing world population, increasing prosperity and an economy based on continuous growth. In 2022 alone, every European consumed an average of 14.9 tons of raw materials per person, per year.

The problem is particularly evident with so-called critical raw materials. These are materials that are indispensable for the energy transition and modern technologies, but whose availability is severely limited. The forecasts for EU demand are alarming: while demand for rare earths will increase six-fold by 2030 and seven-fold by 2050, the figures for lithium are even more drastic. Here, a twelve-fold increase is expected by 2030 and even a twenty-one-fold increase by 2050.

Europe is currently heavily dependent on imports for many of these raw materials, often from just one third country. Crises such as the COVID-19 pandemic have shown how vulnerable these dependencies can make us.

Earth Overshoot Day: When the earth goes into debt

Earth Overshoot Day marks the day in the calendar year on which humanity has consumed more natural resources than the Earth can regenerate in an entire year. Everything consumed after this date is literally at the expense of future generations. In 2025, this day was already reached on July 24. This means that humanity is living in ecological "overdraft" for more than five months.

The Country Overshoot Day, the country-specific value that shows how soon the annual budget would be exhausted if the entire world population were to follow the consumption habits of a particular country, is even more specific. For Germany, this day fell on May 3, 2025, i.e. after just four months. This year it is one day earlier, on May 2, 2026.

Plastic waste: the most visible symbol of the throwaway society

Plastic waste is one of the most visible and pressing environmental problems of our time. Millions of tons of plastic are produced worldwide every year. A significant proportion of this ends up in the environment, with particularly devastating consequences for marine ecosystems and the species that live in them.

However, the problem does not start with recycling, but with the product itself:

• Many plastic products are designed as disposable items from the outset
• Packaging, films and everyday objects have a useful life of minutes - but a residence time in the environment of hundreds of years
• Once in the environment, plastic breaks down into microplastics, which accumulate throughout the food chain

Objectives of the circular economy

Circular Economy pursues concrete, measurable goals that combine ecological necessity with economic rationality. At its core, it is about creating an economic system that grows not despite, but through sustainability. Ecological responsibility and economic success are not mutually exclusive in the circular economy - they are mutually dependent.

How does the circular economy work?

The 10 R strategies at a glance

The circular economy is not a single concept, but a toolbox of ten strategies, the so-called 10 Rs. They form the core of the circular economy and show specifically how materials and products can be kept in the economic cycle for as long as possible.

Important: Recover is the last option, not the goal. The circular economy strives to ensure that as little material as possible reaches this point.

Together, these ten strategies form a system that not only reduces waste, but makes it structurally superfluous. For companies, this means that those who consistently apply the 10 Rs not only conserve resources, but also open up new business models and competitive advantages.

Reuse, repair and recycling

We regularly encounter the three terms reuse, repair and recycling in everyday life. In the context of the circular economy, they take on a whole new dimension. They are not just individual measures, but interlocking strategies that together ensure that materials and products remain in the economic cycle in the long term.

Reuse: Preserving value before it is lost

Reuse means continuing to use a product in its original form without modifying it or reprocessing it at great expense. It sounds simple, but it has an enormous leverage effect: every product that is reused saves the energy, resources and emissions that would be required to manufacture a new product.

Sharing models that organize access to products through shared use instead of individual ownership are particularly effective:

• Car sharing and bicycle rental systems in the mobility sector
• Shared office space and coworking spaces
• Platforms for exchanging and lending everyday objects, tools or clothing

Modern technology plays a crucial role here: digital platforms and apps organize sharing models, while networked systems can track the condition and whereabouts of products in real time, ensuring longer, more efficient use.

Repair: the underestimated potential

Repairing is actually a matter of course and yet we have almost forgotten how to do it. Yet repair is one of the most effective strategies in the circular economy: a repaired product does not need new raw materials, a new production process or new packaging. It simply works again.

This sounds obvious, but it is no longer the case: many products today are deliberately designed in such a way that repairs are made more difficult or even impossible. This phenomenon is known as planned obsolescence, the deliberate shortening of a product's lifespan in order to force the purchase of a successor.

Recycling and upcycling: when waste becomes a raw material

Recycling is the best-known strategy of the circular economy and at the same time the one that is most often misunderstood. Recycling does not automatically mean that the value of a material is retained. In classic recycling, material is recovered from a product and used to manufacture new goods, but often with a loss of quality.

This is where upcycling comes in: Instead of simply recovering materials, they are transformed into something more valuable. Textile waste is turned into high-quality designer products, industrial waste into building materials, disused components into new design objects.

Upcycling is therefore not only ecologically sound, but also a real driver of innovation. New products, new markets and new business models are emerging that would not exist without the creative use of existing materials.

Closed loop systems

Reuse, repair and recycling are effective individual measures, but they only develop their full power when they work together in a closed-loop system. This systems thinking is at the heart of the circular economy.

A closed-loop system has a clear objective: materials should be returned to the economic cycle completely and without loss of value after use, again and again, without the need to add new raw materials or generate waste.

Prerequisite: cooperation along the entire supply chain

Closed-loop systems do not work on their own. They require close cooperation between all players in the value chain:

• Manufacturers design products for dismantlability and recyclability from the outset
• Suppliers provide materials that can be processed in a circular manner
• Retailers and service providers organize take-back and reconditioning processes
• Consumers specifically return products to the cycle after use

Only when all these players act in coordination with each other can a truly closed cycle be created. One in which materials circulate continuously instead of ending up as waste at some point in the chain.

The role of digitalization

Closed-loop systems are hardly conceivable without digital infrastructure. Data analysis, real-time monitoring and modern tracking technologies are the prerequisites for making material flows transparent, traceable and controllable:

• Digital product passports document the entire life cycle of a product, from raw material extraction to disposal
• Blockchain technology ensures the integrity of this data and makes transactions along the supply chain tamper-proof and traceable
• Predictive analytics help companies to forecast material requirements and deploy resources in a targeted manner

Systems thinking as a key competence: Perhaps the most important aspect of closed-loop systems is a cultural one: it requires a fundamental rethink, away from an isolated view of individual processes and towards a holistic understanding of systems. Companies that make this change recognize that waste is not destiny: Waste is not destiny, but the result of a poorly designed system. And well-designed systems not only create ecological benefits, they are also economically superior.

Opportunities and challenges

Economic opportunities

The circular economy not only makes ecological sense, it is also a tangible economic factor. Companies that consistently align their business models with circular principles open up new markets, reduce costs and strengthen their competitiveness.

Less dependency, more stability: who doesn't remember the supply chain crises of recent years? Raw materials that suddenly became scarce, prices that exploded, production that came to a standstill. This is precisely where one of the most tangible economic opportunities of the circular economy lies: those who keep materials in circulation and see recycling as a strategic tool become less dependent - on imports, on price fluctuations and on the vulnerability of global supply chains.

New business models and market opportunities: The transition to a circular economy is not a renunciation. Rather, it is an invitation to innovation. Where previously only disposal costs were incurred, new business areas are now emerging.

The product-as-a-service model in particular is gaining in importance across all sectors: manufacturers retain ownership of their products, take over maintenance and repair and at the same time benefit from stable, long-term customer relationships.

Cost savings through resource efficiency: using less material simply means spending less money. Closing material cycles and relying on secondary raw materials also makes you less dependent on the global raw materials markets - with their sometimes severe price fluctuations and supply risks. Especially in economically uncertain times, this is not a nice extra, but a real competitive advantage.

Customer loyalty through quality and sustainability: Products that are designed for durability, repairability and quality strengthen customer trust. Companies that follow this path build a sustainable reputation and benefit from customer loyalty that goes beyond pure price competition. The economic potential is enormous: for Germany alone, estimates predict an annual increase in gross value added of up to 12 billion euros and the creation of around 120,000 new jobs as a result of the transition to a circular economy.

Economic and cultural barriers

In addition to technological hurdles, it is often economic and cultural factors that slow down the transition to a circular economy. These barriers are more difficult to tackle than technical problems and are therefore often the most persistent.

Economic barriers: When sustainability does not pay off in the short term

The linear economic model has decades of roots and they run deep. Machines, processes, supply chains: many things are geared towards "produce and sell", not cycles. Conversion costs money, and that is no small matter. There is also a structural problem: linear business models are often cheaper in the short term because the true costs of resource consumption - environmental damage, disposal costs, scarcity of raw materials - are not reflected in the product price but are borne by society. As long as this remains the case, the linear model is simply the more rational choice for many companies. This hits small and medium-sized companies particularly hard: As the backbone of the German economy, they play a key role in change, but often have neither the financial means nor the capacity to initiate it.

Regulatory challenges

The legal situation does not always make things easy for companies either. If you want to operate in a circular economy, you quickly come up against a patchwork of different standards, inconsistent recycling regulations and a lack of international coordination. What is considered recyclable in one country may not be permitted in the next. This costs time, money and slows down change.

Cultural barriers: The most difficult obstacle

For decades, growth was synonymous with more production, more consumption, more turnover. This way of thinking runs deep - in companies as well as among consumers. On the corporate side, the circular economy requires a rethink at all levels. New business models such as product-as-a-service or sharing platforms not only require new processes, but also a different attitude: longevity and resource conservation as a strength, not a sacrifice.

Consumers are aware of the problem: People want to live more sustainably and still buy the cheaper disposable product. This is not a question of morality, but of the framework conditions. As long as throwing away is more convenient and cheaper than keeping, little will change.

Political framework conditions

National Circular Economy Strategy (NKWS)

Germany can look back on a comparatively long history of enshrining circular economy principles in law. The Closed Substance Cycle and Waste Management Act (KrW-/AbfG) was passed back in September 1994. This was a milestone that formulated the principles of the circular economy in law for the first time. Further developments followed until the modernized Closed Substance Cycle and Waste Management Act(KrWG) finally came into force in 2012, which still forms the legal basis for systematic waste management in Germany today.

Building on this legal foundation, the Federal Cabinet adopted a comprehensive National Circular Economy Strategy (NKWS) on December 4. It is a strategic framework designed to lead Germany towards a resource-efficient future. The strategy pursues three central goals:

1. Goal 1: Drastically reduce the consumption of primary raw materials: The per capita consumption of primary raw materials is to be reduced to 6 to 8 tons by 2045. It currently stands at just under 15 tons per person per year. At the same time, the proportion of secondary raw materials is to be doubled by 2030. This means: more recycled materials, fewer newly mined raw materials.
2. Goal 2: Strengthen independence from raw material imports: In accordance with the European Critical Raw Materials Act(CRMA), the EU should be able to cover 10 percent of its demand for strategic raw materials and 40 percent of its demand for processed raw material products from its own production by 2030. In addition, the EU's recycling capacity should make it possible to recycle 25 percent of strategic raw materials by 2030. Another protective wall against dependency: no single raw material may be sourced more than 65% from a single third country.
3. Goal 3: Consistently reduce the volume of waste: Per capita waste generation should fall by 10 percent by 2030 and by 20 percent by 2045, an ambitious but necessary target given current waste volumes.

The ten fields of action of the NKWS

In order to achieve these goals, the NKWS defines ten specific fields of action that cover the entire spectrum of economic activity:

• Digitalization and circular economy
• Clothing and textiles
• Renewable energy plants
• Vehicles, batteries and mobility
• Construction and buildings
• ICT and electrical appliances
• Metals
• Plastics
• Public procurement
• Circular and resource-efficient production

Of course, there is still a lot to do. Existing infrastructures must be restructured, smaller companies must not be overburdened financially and international approaches must be better coordinated. These are no small tasks. But the NKWS creates something that has been missing until now: a binding framework that clearly sets Germany's course and shows that sustainable business is no longer a question of goodwill, but a political priority.

EU strategies and directives

While Germany has created a national framework with the NKWS, the circular economy is also being actively promoted at European level through a variety of strategies and directives. The EU is pursuing a clear overarching goal: climate neutrality by 2050 and the circular economy is a central building block on this path.

The Waste Framework Directive: The foundation

The foundation stone was laid back in 1975: With the Waste Framework Directive (WFD)(Directive 75/442/EEC), the EU formulated for the first time a binding requirement that waste should be reduced and materials should be used for as long as possible through reuse and recycling. Principles that sound obvious today were groundbreaking at the time.

Since then, the directive has been revised and tightened several times. The current version, last consolidated in February 2024, goes much further than its origin: it actively obliges member states to promote sustainable production and consumption models and not just to manage waste once it has already been generated.

In concrete terms, this means that the member states are required to actively support more sustainable consumption and production patterns, and not just on paper. This includes ensuring that electrical appliances last longer and can be repaired more easily, that food waste is systematically combated and that consumers are better informed so that they can make more conscious decisions.

The EU action plan for the circular economy

In March 2022, the European Commission presented a comprehensive action plan for the circular economy, the most ambitious set of European regulations in this area to date.

The action plan is not a static document. It is continuously supplemented and fleshed out with new measures, as the developments in the years 2022 to 2024 show.

With these regulations, the EU is gradually creating a binding framework that holds companies and consumers equally accountable and gives the circular economy the regulatory tailwind it needs for broad implementation.

Circular economy in practice

The principles of the circular economy sound convincing in theory. But what do they look like in practice? The answer is: as diverse as the economy itself. The European Commission's EU Action Plan identifies seven key areas in which the transformation to a circular economy is particularly urgent and at the same time particularly effective.

Tips for companies and consumers

The circular economy is not an abstract idea. It starts with concrete decisions. Both companies and consumers can actively contribute to the transformation. Here are the most important starting points:

Tips for companies

Circular product design right from the start: The most effective lever for companies lies in the design. Products should be designed from the outset in such a way that they are easy to repair, dismantle and recycle. Concrete approaches for this are:

• Conduct life cycle assessments to understand and minimize environmental impacts at every stage of production
• Apply the cradle-to-cradle principle - design products in such a way that their materials can be used entirely as raw materials for new products at the end of their useful life
• Promote user-centered design that supports intuitive operability and energy-efficient use

Optimizing the supply chain: A circular supply chain is more than an environmental statement, it is an economic advantage:

• Focus on efficient use of resources, for example through just-in-time deliveries and optimized warehousing
• Introduce sustainable procurement practices and select suppliers according to environmental and social standards
• Strengthen risk management through real-time monitoring and early warning systems, especially with regard to supply bottlenecks for critical raw materials

Using data as a basis: The circular economy needs a solid database:

• Use predictive analytics to plan resources with foresight and react more agilely to market changes
• Using blockchain technology to document transactions and material flows along the supply chain in a transparent and tamper-proof manner
• Establish customer feedback systems to continuously improve products and better align them with actual user needs

Whether companies or consumers, every stakeholder has leverage. The circular economy does not work top-down through regulation alone, nor bottom-up through individual decisions alone. It needs both: an economic environment that rewards circular behavior and a society that actively supports this change.

Conclusion

The circular economy is not a vision for the distant future. It is an economic necessity of the present. In view of finite resources, growing volumes of waste and increasing dependence on imports, it offers the only viable way out of the limitations of the linear economic model.

The good news is that change is in full swing. Political framework conditions at national and European level are creating binding standards, technologies such as digital product passports are making circular systems scalable and companies that act early are gaining a clear competitive advantage.

Ultimately, the circular economy is not a compromise between ecology and economy. It shows that both belong together and that sustainable economic activity does not come at the expense of growth, but rather makes it possible in the long term.