Biodiversity at Risk: Pollution’s Impact in the Philippines

Plastic waste is not just an eyesore along Philippine coastlines — it is actively degrading the ecosystems that millions of Filipinos depend on for food, livelihood, and protection from storms. A recent assessment by the National Plastic Action Partnership (NPAP) Philippines, a multi-sector platform led by the Department of Environment and Natural Resources (DENR), found that plastic pollution is wreaking havoc on biodiversity and the coastal communities that rely on marine resources. This is not a distant problem — it affects the fish on your table, the resilience of your barangay during typhoon season, and the long-term health of some of the most biodiverse waters on the planet.

The numbers paint a stark picture. The Philippines loses roughly 47,000 hectares of forest each year, a rate that directly accelerates habitat loss and makes landslides and floods more likely. Meanwhile, over 70 percent of the country’s rivers are polluted, threatening both irrigation for farms and drinking water for communities. These are not separate crises — deforestation, pollution, and biodiversity loss reinforce each other, and the consequences land hardest on those with the fewest alternatives. For a deeper look at how communities are adapting on the ground, see our coverage of community climate adaptation insights from the Philippines.

How Pollution Unravels Ecosystems and Livelihoods

The core problem is straightforward: pollution does not stay where it is dumped. Plastic waste travels through rivers to the ocean, where it breaks into particles that fish ingest. Those fish end up on market stalls. The same runoff that carries agricultural chemicals into waterways also degrades the soil that crops depend on. What makes this particularly difficult is that the people most exposed to the consequences — small-scale fishers, farmers, and informal waste collectors — have the least power to change the systems producing the waste. As UNDP Philippines Deputy Resident Representative Edwine Carrie put it during the NPAP roundtable, tackling plastic pollution is ultimately determined by governance and policy decisions, not just cleanup drives.

The Scale of the Damage Across Sectors

When DENR Undersecretary Jonas Leones described the human and ecological dimensions of plastic pollution as “critical dimensions that are too often overlooked,” he was pointing to a gap between what scientists know and what policy addresses. The NPAP’s PlastiBASE study and its Gender Equity and Social Inclusion (GESI) assessment were designed to close that gap by documenting exactly how pollution moves through ecosystems and who gets hurt along the way.

The numbers from the broader environmental assessment are sobering. Beyond the 47,000 hectares of annual forest loss, 80 percent of the country’s irrigation infrastructure is aging or operating below capacity, which means that even when water is available, getting it to farms is increasingly difficult. In agricultural hubs like Bulacan, Pampanga, and Cagayan Valley, declining river flows and deteriorating water quality directly threaten both crop production and safe drinking water. The result is a cascading effect: degraded soil, lower yields, and greater pressure to clear more forest for farming — which in turn accelerates habitat loss.

Fisheries and coastal ecosystems are taking a direct hit. Overfishing, mangrove loss, and pollution are converging to threaten the livelihoods of more than a million people who depend on fishing for food and income. The World Economic Forum’s Jeet Kar highlighted a staggering figure during the NPAP event: more than half of the world’s GDP — equivalent to US$44 trillion — is moderately or highly dependent on nature. When biodiversity declines, the economic foundation of entire industries weakens. For an archipelagic nation like the Philippines, the stakes are especially high. You can read more about the specific threats to marine ecosystems in our article on the impact of ocean acidification on Filipino reefs.

What Gets Missed: Gender, Informal Workers, and Unequal Exposure

One of the most frequently overlooked dimensions of the pollution crisis is who bears the heaviest burden. The NPAP’s GESI study found that women and disadvantaged groups are disproportionately affected by plastic pollution because they are at the frontlines of informal waste collection and management. These workers handle hazardous materials daily, often without protective equipment, formal contracts, or access to healthcare.

British Embassy Manila Economic and Climate Counsellor Lloyd Cameron made the point directly: women are central to plastics value chains — from collection and sorting to community recycling initiatives — but this work is almost always informal. “When we talk about formalizing the waste economy,” he said, “we must make sure that the specific barriers faced by women are understood and addressed to ensure the transition is just and inclusive.”

This is not a side issue. If solutions to plastic pollution ignore the people already managing the waste, those solutions risk making conditions worse for the most vulnerable. Formalizing the sector means providing fair wages, safety standards, and a seat at the table when policies are designed. Without that, the system continues to externalize its costs onto the poorest households.

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Another dimension that gets less attention is the cumulative effect of multiple stressors. A river polluted by agricultural runoff and plastic waste does not just lose its fish — it also becomes a health hazard for communities that rely on it for drinking water and washing. The same deforestation that drives habitat loss also removes the tree cover that prevents soil erosion, which in turn silts up rivers and coral reefs. These feedback loops mean that addressing only one piece of the puzzle — say, banning single-use plastics — will not be enough if the underlying drivers of deforestation, unregulated mining, and weak enforcement remain unchanged.

What Can Be Done: Policy Direction and Practical Steps

The Philippines is positioning itself to take a leadership role on these issues. DENR Secretary Raphael Lotilla has stated that the country will champion plastic pollution and biodiversity protection during its chairmanship of the ASEAN Community Vision 2045 in 2026. In an interview on the sidelines of the 18th ASEAN Ministerial Meeting on the Environment, Lotilla emphasized that the Philippines would push for science-based, inclusive regional action on climate and plastic pollution. He noted that ASEAN is among the fastest-growing regions in the world but also faces enormous climate-related risks, and that a regional approach would reinforce each country’s resilience.

Strengthening Waste Collection and Management

With over 30 percent of waste going uncollected, the most immediate step is improving basic collection infrastructure, especially in rural and peri-urban areas. This means investing in local government capacity, regular collection schedules, and accessible drop-off points. Without collection, waste inevitably ends up in waterways.

Formalizing the Informal Waste Sector

As the GESI study highlights, the people already handling waste — many of them women — need legal recognition, fair compensation, and safety protections. Formalization is not just a social justice issue; it is an operational necessity. A recognized workforce can be trained, equipped, and integrated into municipal systems, improving recovery rates and reducing environmental leakage.

Regional Cooperation on Marine Plastic Pollution

Because plastic waste does not respect borders, the Philippines is pushing for stronger implementation of ASEAN action plans on marine plastic pollution. Lotilla has specifically called for collective action with Indonesia and Malaysia to protect ASEAN seas. This includes harmonizing standards, sharing data, and coordinating cleanup and prevention efforts across the region. For more on what an effective international framework could look like, read our piece on why the Philippines should advocate for a robust plastics treaty.

Addressing Legacy Pollution

Lotilla also made a point that is easy to overlook: the challenge is not only about preventing future waste but also dealing with the plastic that has already accumulated. “We have a duty,” he said, “not only to our people but also to the global community to preserve biological resources for future generations.” This means investing in clean-up operations, particularly in critical habitats like mangroves, coral reefs, and seagrass beds, while simultaneously plugging the sources of new pollution.

Frequently Asked Questions

Sources

Battling plastic pollution in the Philippines — A closer look at local initiatives and the scale of the plastic waste problem across the country.

Research uncovers serious plastic pollution issues in the Philippines — Key findings from studies documenting how plastic waste moves through ecosystems and communities.

Plastic pollution impacts heavily on biodiversity, PH communities. Manila Standard, 2025.

Current Environmental Issues in Philippines 2026: Top 10 Challenges. Farmonaut, 2025.

PH to champion plastic pollution, biodiversity protection in ASEAN. Philippine News Agency, 2025.