What makes the world’s most effective waste strategies work, and why are so many countries still getting it wrong? Darrel Moore speaks to leading international experts to find out.
From South Korea’s food waste revolution to Sweden’s integrated energy-from-waste systems, some countries consistently outperform others in managing resources.
Ahead of this year’s ISWA World Congress, held in London, Circular Online explores what underpins these high-performing systems.
A growing global divide
Global waste generation is rising faster than previously understood. According to the World Bank’s What a Waste 3.0, the world produced 2.56 billion tonnes of municipal solid waste in 2022, with projections reaching 3.86 billion tonnes by 2050 under current trajectories – a near 50% increase.
This growth is not evenly distributed. High-income countries, while representing just 16% of the global population, generate 29% of waste.
Meanwhile, low- and middle-income regions are experiencing the fastest growth. Sub-Saharan Africa is projected to see waste volumes more than double by the mid-century, while South Asia’s waste output is expected to almost double if current trends continue.
At the same time, the ability to manage this waste diverges sharply. High-income countries achieve near-universal collection, while low-income countries collect only around 28% of waste.
Globally, around 30% of waste remains uncollected or is openly dumped, with significant consequences for public health, climate and economic development.
This widening gap defines the global waste challenge. While some countries have built systems that deliver consistently strong outcomes, others still struggle with basic service provision. The difference is not simply one of wealth, but of system design.
Defining what ‘effective’ means
High-performing waste systems are often judged by headline recycling rates or landfill diversion figures. But this misses the point; true effectiveness is systemic. It reflects a combination of outcomes:
- Reliable collection coverage
- Stable financing
- Low contamination rates
- Strong end-markets for materials
- Long-term policy durability
As the World Bank emphasises, waste management sits at the intersection of public health, environmental protection and economic development.
Where systems function well, cities are cleaner, more resilient and more economically competitive. Where they fail, the consequences ripple across economies and communities.
Dan Cooke, Director of Policy, Communications and External Affairs at CIWM, cautions against oversimplifying success: “The question is unfortunately too simple for the hugely varying systems and complexities of global resources and waste management.”
Instead, he points to a set of shared characteristics: “There are undoubtedly some commonalities… clear strategies, objectives and targets, economic and regulatory frameworks… effective planning and enforcement regimes… alongside responsible business and entrepreneurial endeavour.”
This is the foundation of high performance. Not a single policy or technology, but alignment across the system.
South Korea: Behaviour driven by incentives
South Korea offers one of the clearest examples of behaviour-led system design.
Its food waste system combines separate collection with pay-as-you-throw principles, where households are charged based on the amount of food waste they dispose of.
In many areas, RFID-enabled bins or prepaid bags are used to track waste generation, making it both visible and financially tangible.
The results are widely cited as among the best in the world. South Korea is commonly reported to recycle around 90% or more of its food waste, redirecting material into compost, animal feed and bioenergy.
What makes this system effective is not just technology, but clarity of incentives. Households directly experience the cost of waste, and the infrastructure makes compliance straightforward.
This reflects a broader principle: behaviour change does not happen through awareness alone. It requires systems where the easiest option is also the right one.
Sweden: Integration over isolation
Sweden is often cited for its minimal reliance on landfill, particularly for household waste, but its success lies in how the system is structured.
Energy-from-waste is fully integrated with district heating networks, supplying heat and electricity to homes and businesses. Recycling, biological treatment and energy recovery are not competing approaches; they are coordinated components of a single system.
This integration allows Sweden to treat waste as a resource rather than a liability. It also provides a consistent demand for residual waste as a fuel source. To support this system, Sweden imports sorted waste from other European countries to supply its energy recovery capacity.
Crucially, this system is underpinned by long-term policy stability and sustained infrastructure investment. Investors and operators work within a predictable framework, enabling consistent performance over decades.
The lesson is not to replicate energy-from-waste in isolation, but to recognise that effective systems are designed as ecosystems, not as disconnected interventions.
Germany: Responsibility starts upstream
Germany’s system is built on one of the world’s most developed frameworks of Extended Producer Responsibility (EPR).
Producers are required to finance the collection and recycling of packaging materials, shifting the cost burden upstream. This creates a direct incentive to reduce material use and improve recyclability.
The system is reinforced by strict regulation, advanced sorting infrastructure and strong compliance mechanisms. The result is high-quality recycling streams and a mature secondary materials market.
However, as Jane Gilbert of Carbon Clarity highlights, replicating this model is far from straightforward: “Many countries attempt to replicate elements… but these efforts frequently underperform because they transplant policy instruments without the enabling conditions that make them effective.”
One of the most significant gaps is the role of the informal sector, she adds: “In many low- and middle-income countries, informal waste pickers play a central role… When informal systems are ignored or displaced rather than integrated, material recovery efficiency can decline.”
This is a critical insight. High-performing systems are not just formal. Ignoring existing systems can weaken performance rather than improve it.
Japan: Precision through culture and trust
Japan’s waste system demonstrates the importance of behavioural alignment.
Households separate waste into multiple categories, often with strict collection schedules and detailed local guidance. This level of precision would be difficult to enforce through regulation alone.
Instead, it is supported by strong social norms and public trust. Residents believe their efforts matter, and the system consistently delivers visible results.
The outcome is a system with high levels of compliance, low landfill dependence and highly controlled waste flows. However, Japan’s system still relies heavily on incineration, and its municipal recycling rate remains relatively modest compared to some European countries.
This highlights a key point: behaviour is not simply a variable to be managed, it is a core component of system design.
Why does replication so often fail
If the principles of high-performing systems are broadly understood, why do so many attempts to replicate them fall short?
Cooke explains: “Simply trying to transpose them into other countries with different economic, political, regulatory and cultural frameworks almost always fails.”
Even within a single country, variation can be significant, he says. “This is often exaggerated in regional differences. Just consider variations within the UK alone.”
The World Bank reinforces this point. Waste systems are shaped by income levels, governance capacity and infrastructure. While nearly all waste in high-income countries is managed in controlled facilities, only a very small proportion is managed this way in low-income countries.
Gilbert identifies several recurring failure points:
- Weak enforcement capacity
- Lack of data and monitoring systems
- Absence of end-markets for recyclate
- Misalignment with informal sector dynamics
She notes: “Without credible enforcement, policy signals fail to drive investment in collection, sorting, and reprocessing infrastructure… Ultimately, what is often missing is systemic alignment.”
This is the core issue. Policies are often imported without the governance, infrastructure or market conditions needed to support them.
The economic reality: Waste as a system investment
One of the most consistent findings from What a Waste 3.0 is the economic importance of waste systems.
Global waste management already costs over $250 billion annually, rising to around $426 billion by 2050 under business-as-usual scenarios. Yet the cost of inaction is even higher, including environmental damage, health impacts and lost economic productivity.
Cooke frames this shift in perspective clearly: “We need to swiftly move from the collective mindset of seeing post-consumer waste as a liability… to understanding resource efficiency and effective waste services as an asset.”
This aligns with the World Bank’s broader conclusion: waste systems are not simply environmental services; they are foundational infrastructure for economic development.
What high-performing systems really share
Across different countries and contexts, the strongest systems consistently demonstrate five core characteristics:
- Long-term policy stability – Clear direction sustained over decades, not short-term policy cycles.
- Aligned incentives – Households, producers and operators are working toward the same outcomes.
- Infrastructure matched to ambition – Policy targets are supported by physical capacity.
- Integrated system design – Collection, sorting, treatment and markets are treated as connected stages.
- Public trust and participation – People engage because the system is reliable and transparent.
Together, these elements create what can be described as systemic alignment.
The next generation of waste systems
Looking ahead, the question is not whether policy, technology or behaviour will define future systems, but how they interact.
Zoë Lenkiewicz of Global Waste Lab is clear: “The next generation of high-performing waste systems will be defined by how well policy, technology and behaviour are aligned. None of them achieves much in isolation.”
She warns against over-reliance on any single solution: “We have all seen what happens when one of these is treated as the sole answer: policies that sound strong but change little… technologies that promise a great deal but are ill-fitted… and behaviour change campaigns that ask too much of people.”
Instead, success depends on integration, she says. “What will define the strongest systems is whether governance, finance, operations, infrastructure, markets and human behaviour are considered together.”
This is perhaps the clearest articulation of the central lesson: high performance comes from making the whole system work.
The real lesson
There is no single model for success in waste management.
No country has solved every challenge. Even the most advanced systems continue to evolve, responding to changing materials, consumption patterns and environmental pressures.
What distinguishes the highest-performing systems is not individual brilliance, but coherence.
Policy, infrastructure, finance and behaviour are aligned. Incentives reinforce outcomes. Systems are designed to function reliably over time.
As Cooke notes, the challenge remains unresolved: “To my knowledge so far, no country has broken the clear link between economic prosperity and increased waste generation… it remains something of a holy grail across the globe.”
That may be the defining challenge of the next generation.
Join the conversation at ISWA 2026
These questions, and the systems shaping the answers, will take centre stage at the ISWA World Congress 2026, taking place in London from 9–11 November.
Bringing together thousands of professionals, policymakers and industry leaders, the Congress will explore the strategies, technologies and policies driving real-world progress at a pivotal moment for the sector.
Hosted at the QEII Centre in Westminster, the event marks the return of the Congress to the UK for the first time in over 30 years, offering a unique platform to share insight, challenge assumptions and shape the future of resource management.
To learn more, register to attend or submit an abstract here.