Africa’s role in shaping the global plastics treaty is no longer peripheral: The African Union (AU), the Southern African Development Community (SADC), and the Common Market for Eastern and Southern Africa (COMESA) ought to have a collective contribution that can redefine how the world cognizes plastic pollution not just as waste, but as a chemical and oceanographic crisis.
A human-centric view of the global plastics treaty begins with lived realities: plastic pollution is not only littered beaches or overflowing landfills.
It is the invisible chemical pathways that move through water, food systems, fisheries, and human bodies.
Chemical oceanography, therefore, reveals how plastics fragment into microplastics and nanoplastics, how they adsorb persistent organic pollutants, and how they interact with ocean currents, sediments, and marine biota.
The ocean is not just a victim of plastic pollution but a conveyor system that redistributes chemical harm across borders, ecosystems, and generations.
The reason participation of the regional institutions is indispensable.
The African Union provides the continental political architecture: AU positions Africa as a co-author of global environmental regulations.
Leveraging the Agenda 2063 and its environmental frameworks, AU is uniquely placed to frame plastic pollution as a development, health, and justice concern, one that intersects with sustainable blue economy, coastal urbanization, water security, and public health.
In many African coastal and inland communities, plastics do not arrive as abstract pollutants; they arrive as blocked drainage systems that exacerbate flooding, as microplastics in fish that families depend on for protein, and as burning waste that releases toxic compounds into the air.
The global plastics treaty hence cannot only be a technical agreement, it ought to be a lived justice instrument.
The African Union’s role is to elevate lived environmental experience into global negotiations.
At the sub-regional level, SADC brings fortified perspectives of vulnerable coastlines and shared marine ecosystems such as the Western Indian Ocean and the South Atlantic interface.
SADC member states are experience compounding effects of plastic leakage into rivers like the Limpopo and Zambezi, which transport both macro- and microplastics into marine systems.
Chemical oceanography enables end users understand that these rivers are not just hydrological systems; they are chemical highways transporting plastic-associated toxins such as phthalates, bisphenols, and heavy metals.
SADC’s exemplification in advocating for the global plastics treaty ought to delve on harmonized upstream controls, production limits, chemical transparency, and extended producer responsibility. Without such measures, downstream coastal cleanups will remain symbolic.
The region’s lived experience demonstrates that waste management alone cannot solve what is fundamentally a production and chemical design challenge that can be turned into opportunities.
COMESA adds another dimension: the governance of transboundary trade and economic integration.
Plastic products, packaging materials, and chemical additives move across COMESA’s vast internal market.
This creates both challenges and opportunities. The challenge is regulatory fragmentation.
The opportunity lies in harmonization - creating regional standards for plastic polymers, additives, and recyclability criteria that align with the global treaty framework.
From a chemical oceanography perspective, COMESA’s role is critical. What is produced, traded, and consumed inland eventually reaches the ocean through river systems and atmospheric deposition.
Landlocked countries contribute to ocean plastics pollution through shared hydrological networks.
This reality disrupts the traditional coastal bias of ocean governance and reinforces the idea that the ocean is chemically connected to the entire continent.
The UN Decade of Ocean Science for Sustainable Development (UN Decade of Ocean Science for Sustainable Development) provides an important scientific backbone to these governance efforts.
It calls for transformative ocean science that is inclusive, solution-oriented, and globally co-produced.
For Africa, this is an opportunity to integrate chemical oceanography with policy-making in a way that centers African datasets, African coastlines, and African communities.
Within this framework, the global plastics treaty becomes more than an environmental agreement: it becomes a scientific and ethical convergence point.
African institutions can use the Ocean Decade to strengthen monitoring systems for microplastics in marine and freshwater systems, build capacity in chemical tracing technologies, and expand community-based ocean observation networks.
This is where human-centered science becomes realistic: beach management units, coastal women’s groups, disability led groups and youth organizations become data contributors, not just affected populations.
The African Union, SADC, and COMESA collectively provide a reinvigorated governance framework that connects continental vision, regional implementation, and trade regulations.
Progressively, they can advance the global plastics treaty.
