In Mongla, climate change is not an abstract threat but a reality. Rising salinity, erratic weather patterns, and increasingly frequent cyclones have steadily reshaped the region's farming systems, narrowing crop choices.
For farmers in this region, adaptation is no longer optional; it is now a necessity to cope with an environment that is increasingly hostile with each passing season.
Amid this uncertainty, a curious sight has begun to appear in vegetable fields: Dark, sturdy posts standing firm against the soil.
These supports are not bamboo or timber, materials farmers have long relied on, but now are increasingly ill-suited to Mongla's saline and moisture-heavy conditions.
Instead, these supports are made entirely from recovered plastic waste that was once scattered across coastal settlements in Cox's Bazar.
What was previously a persistent environmental burden, clogging drains, waterways, and open water bodies due to its long lifespan, this plastic is now recycled and repurposed to support crops, reduce farmers' costs, and point towards a new way of thinking about both single-use plastic waste and climate resilience.
Coastal Bangladesh sits at the intersection of vulnerability and opportunity. In areas like Mongla, dry-season soil salinity has reached levels that severely limit crop choices, while cyclones and tidal surges regularly inundate farmland with saltwater.
Many traditional agricultural materials degrade quickly under such conditions. Bamboo rots, timber weakens, concrete corrodes, and pests thrive. Farmers are forced into a costly cycle of seasonal replacement that is both financially draining and environmentally unsustainable.
At the same time, Bangladesh is grappling with a growing plastic pollution crisis. Low-value plastics used in single-use packaging, such as polypropylene and high-density polyethene, rarely enter formal recycling systems.
Instead, they clog canals, fill landfills and worsen flooding, particularly in urban and coastal areas. While agriculture struggles with material scarcity, waste management systems are overwhelmed by plastic that they cannot absorb.
Sometimes, solutions emerge when two problems collide.
In September 2025, a visit by BRAC's Climate Change Program to the Cox's Bazar Municipal recycling facility sparked a rethink. Under an existing initiative, recycled plastic lumber had been earmarked for commercial uses such as furniture or construction. Standing amid recycling machinery, the question arose almost instinctively: Could this material serve a purpose in agriculture?
The idea was deceptively simple. If recycled plastic beams were strong, durable, pest-resistant, and capable of withstanding coastal weather, why not test them where such qualities were most needed? Mongla's fields offered the answer.
Rather than focusing solely on reducing plastic's carbon footprint, this initiative began to explore something more ambitious: The positive climate impact of replacing fragile or carbon-intensive materials with a resilient, recycled alternative.
Each beam produced at the Cox's Bazar Municipal Recycling Facility weighs just over 3 kilograms and is made from an even blend of polypropylene and high-density polyethene.
In total, 500 units were manufactured, reintroducing 1.65 tons of plastic waste into productive use.
Unlike bamboo, these beams do not rot, attract pests, or require seasonal replacement.
Designed to last for years, they reduce pressure on timber resources while offering farmers a reliable alternative that suits their environmental realities.
From a climate and emissions perspective, the benefits are substantial. Producing 1,650 kilograms of recycled plastic lumber through open-loop recycling generated just 10.6 kilograms of carbon dioxide equivalent (CO₂e).
Had the same plastic waste gone to landfill, it would have produced 14.7 kilograms of CO₂e -- emissions now fully avoided.
Compared to manufacturing the same amount of lumber from virgin plastic, which would have generated 4,665 kilograms of CO₂e, using recycled material prevented over 4.6 tons of emissions.
Even against wooden alternatives, producing equivalent beams would have emitted hundreds of kilograms of CO₂e, along with the ecological costs of increased timber harvesting. These calculations were conducted by BRAC's Climate Change Program.
The benefits are immediate and practical. Farmers spend less on replacement materials, crops gain stronger support, and agricultural systems become less vulnerable to climate stress. But the implications go further.
This initiative represents circular economy thinking applied where it matters most. Plastic waste collected from one coastal town becomes a resource strengthening food production in another.
Two seemingly separate crises, plastic pollution and climate-stressed agriculture, are addressed through a single intervention.
This is not only about mitigation. It is about adaptation and resilience. Agriculture becomes less dependent on fragile materials, and communities gain infrastructure designed for their environmental reality rather than borrowed from less hostile contexts.
There is, of course, scepticism. Plastic is widely perceived as dirty, unreliable, and inferior, particularly when associated with food production.
Overcoming such perceptions requires not only technical evidence but trust, demonstration and time. The Mongla trial is still in its early stages, but it already offers valuable lessons.
Innovation flourishes when programs collaborate across sectors. Local solutions work best when rooted in local conditions, and changing perceptions is as much a part of climate action as engineering or finance.
From Cox's Bazar, where the waste was collected, to Mongla, where it now anchors crops against wind and rain, this initiative tells a broader story. It is not just about recycling plastic; it is about reimagining value in a warming world.
The plastic paradox is this: what once polluted our land may yet help protect it. From Cox's Bazar, where discarded waste was collected, to Mongla, where it quietly takes root in the soil, this initiative moves beyond recycling to reimagine value in unexpected ways. Each recycled beam carries a subtle reminder that resilience is not always something imported or invented. Sometimes, it begins with what is already in our hands, waiting for us to see its potential and rethink what we once considered waste.
For the farmers of Mongla, resilience isn't just about surviving; it's about thriving in a changing world where what was once discarded may now hold the key to their future.
Kamran Ibne Abdul Qader is a Senior Specialist, Knowledge Management and Communications, Climate Change Program, BRAC. Rukhsar Sultana is a Manager, Partnership & Private Sector Engagement of the Urban Development Program, BRAC. Anima Ashraf is a Specialist, GHG Emissions Accounting and Reporting of the Climate Change Program, BRAC.