This article focuses specifically on plastic waste generated from packaging applications.
PET/polyester has one practical advantage: it often appears in relatively identifiable waste streams, particularly bottles and textiles. Polyethylene is more fragmented, with HDPE and LDPE requiring separate collection and sorting. Once plastics are properly separated, the next question is straightforward: should they be recycled, incinerated or exported?
If recycling is preferred, two further questions arise: which technology should be used, and which applications can realistically absorb the recycled material?
Mechanical recycling is relatively straightforward but has limited applications and usually leads to some degradation in material quality. Chemical and advanced recycling can process more difficult waste streams, but they rely on heavier industrial processes involving heat, solvents, catalysts, acids, depolymerisation or, in some cases, enzymatic treatment. These processes can consume substantial amounts of energy. This raises a fundamental question: once all the chemicals, infrastructure and energy inputs are counted, does advanced recycling always make sense from an energetic and environmental perspective?
Recycling may nevertheless offer an advantage by keeping carbon in circulation rather than immediately releasing it through incineration. But recycled materials also raise questions about contamination and their suitability for sensitive applications. This is particularly relevant for food packaging, where regulators must consider whether unwanted substances can migrate into food. Similar questions can arise with synthetic fibres such as polyester, where prolonged contact with textiles may increase exposure to additives or other chemicals associated with the material.
Reusable products introduce another trade-off. Reusable plastic cups can reduce single-use waste, but they require collection, transport, washing, water, energy, detergents and strict hygiene controls. At festivals and large events, poorly managed washing systems can create sanitation problems. Single-use cups avoid that washing chain and provide a clean product for every use. The real comparison is therefore not simply reusable versus disposable, but the total environmental footprint of each system together with its operational and hygiene requirements.
Europe also exports significant quantities of plastic waste to countries such as Turkey. Once waste leaves the EU, traceability can become more difficult. Some material may be recycled, while other fractions may ultimately be landfilled, dumped or burned. Exporting waste therefore does not necessarily solve the environmental problem; in some cases, it simply transfers part of the burden beyond Europe’s borders.
The same complexity applies to fossil plastics versus bioplastics. At the molecular level, a carbon atom is the same regardless of its origin. Fossil feedstocks are already concentrated sources of hydrocarbons and can often be converted into plastics relatively efficiently. Biomass, by contrast, must first be grown, harvested and processed. Depending on the feedstock and farming system, biobased carbon can therefore carry its own environmental costs through land use, fertilisers, water consumption, energy use and agricultural inputs.
This is why plastics policy should avoid overly simple solutions. Recycling, reuse, bioplastics, incineration and waste exports all involve trade-offs. Yet EU legislation often adds administrative burdens for shop owners and small businesses while presenting increasingly ambitious environmental objectives. Before imposing ever more obligations on businesses and consumers, Europe should first demonstrate that it can efficiently collect, sort, recycle, incinerate and otherwise manage the plastic waste it already produces.
Having been involved in waste management for the past 15 years, I have come to the conclusion that, at this point in time, modern waste incineration in Europe may represent the wisest trade-off between environmental impact and public-health concerns. The problem is that the European Commission remains committed to the circular-economy model, even where plastics are concerned. In practice, however, complete circularity for plastic waste may be more of a fata morgana than a realistic objective.