The UN negotiations on plastic are about more than reducing waste. At their core, they ask whether the international community is willing to regulate the entire life cycle of a material that is now woven into the fabric of global production, trade and consumption.
Plastic has become one of the most complex issues in contemporary environmental policy. It is waste, but it is also an industrial material, a product of the fossil fuel industry, the backbone of modern packaging, a persistent presence in ecosystems and a growing concern for human health. This complexity is precisely what makes it so difficult to turn shared alarm about the problem into a binding international agreement.
The process formally began in March 2022, with UN Environment Assembly Resolution 5/14: End plastic pollution: towards an international legally binding instrument. The mandate was to develop a legally binding agreement covering plastic pollution, including in the marine environment. The hardest question was never whether the problem existed. That is now beyond dispute. The difficulty lies in defining what a treaty should actually cover. An agreement focused on waste management would address collection, recycling, disposal and infrastructure. One covering the full life cycle of plastic would extend to production, design, chemicals, trade, consumption patterns, finance and shared responsibilities between nations. It is this broader scope that has driven the deepest disagreements.
The INC-5.2 session, held in Geneva in August 2025, made the scale of those disagreements plain. UNEP reported that talks closed without consensus, though member states expressed a willingness to continue. More than 2,600 people attended: over 1,400 delegates from 183 countries and around 1,000 observers. The numbers reflect the political, economic and technical weight of a negotiation that goes well beyond environmental policy alone. According to the IISD’s Earth Negotiations Bulletin, the most contested issues included the scope of the agreement, plastic production targets, problematic chemicals, financing and implementation. A central fault line was the meaning of “life cycle”: for some countries, it implies the right to intervene upstream, on production and design; for others, the treaty should focus on the downstream stages of waste management and recycling.
This gap explains why plastic is proving harder to regulate than many other environmental issues. It is not a single pollutant or a narrow product category. Regulating it touches energy, petrochemicals, manufacturing, food, logistics, retail, healthcare, fishing, textiles and construction. Every regulatory decision has knock-on effects across long and uneven supply chains, with very different consequences for producing countries, importing countries, industrialised economies and nations with limited technical or financial resources.
International reporting on the Geneva session confirmed these divides. Reuters noted that disagreements centred on, among other things, potential caps on virgin plastic production, the treatment of chemicals in plastic products and financial support for developing countries. These are not technical footnotes. They determine whether the treaty will address the root causes of plastic pollution or limit itself to managing the results.
The marine dimension also deserves attention. The sea is where plastic pollution becomes most visible, because it collects what production systems and infrastructure have failed to contain. But it is not the source of the problem, but rather its destination. Plastic reaches the sea through rivers, urban runoff, inadequate waste collection, single-use products, lost fishing gear, packaging and the gradual breakdown of larger materials. A treaty that only addresses what happens once the damage is already visible will always fall short.
The failure to reach agreement in Geneva has not ended the process. In February 2026, during INC-5.3, Chilean ambassador Julio Cordano was elected as the new Chair. UNEP confirmed that the session was primarily organisational, with work continuing towards INC-5.4. The negotiations remain open, but still without the political agreement needed to turn the original mandate into a workable agreement.
This ongoing impasse is itself revealing. The obstacle is not a lack of knowledge about the problem. It is the inability, so far, to reconcile industrial interests, environmental responsibilities, national capacities and regulatory ambitions. Plastic is not simply a material to reduce or a waste stream to manage. It is part of how the modern economy works. Regulating it means intervening not only in daily habits, but in production infrastructure, commercial models and the relationships between states.
For piùblu, the stakes are immediate. Protecting seas, rivers and lakes cannot be separated from decisions made long before plastic reaches the water. Clean-up activities make part of the problem visible and reduce its local impact. An ambitious global treaty should act on what comes before that: production, design, supply chain responsibility, the elimination of unnecessary uses and prevention at source.