LET’S PLANT MORE MANGROVES, THE GREAT CARBON SINKS

LET’S PLANT MORE MANGROVES, THE GREAT CARBON SINKS

As the saying goes, you can’t have too much of a good thing. And if there is one thing in the Philippines we should never say “enough” about, it is mangroves. In fact, we should be saying, “the more the merrier.”

We are blessed with one of the longest coastlines in the world and—believe it or not—around 35 species of mangroves, one of the highest diversities on the planet. God has given us a natural advantage. The question is: Are we using it?

I have said it before and I will say it again: mangroves are money. And not just money from fisheries and eco-tourism, but now from the global carbon economy—carbon credits and even Debt-for-Nature Swaps (DfNS). If other countries are earning from their mangroves, why shouldn’t we?

A new study by scientists from UP Tacloban confirmed what many of us have long suspected: Philippine mangroves are world-class carbon sinks. The research found that mangroves in Eastern Visayas store an average of 387 tons of carbon per hectare, equivalent to over 1,400 tons of CO₂. These numbers rival—and in many cases surpass—upland forests.

And here’s the real magic: mangroves bury carbon in waterlogged soils where decomposition is so slow that the carbon stays locked away for centuries. That is why these forests are now considered some of the most efficient long-term carbon vaults on Earth.

But mangroves are not just climate solutions—they are national security assets. We’ve seen it in Leyte and Samar: where mangroves stand, storm surges are weaker. Where mangroves were cut, communities paid the price.

And have we forgotten that mangroves are also food security infrastructure? Where mangroves grow, plankton thrive. Where plankton thrive, fish multiply. Simple chain reaction. Simple logic. Yet we continue to undervalue these ecosystems.

So why aren’t we planting more?
Why aren’t we requiring every coastal LGU to establish and expand mangrove belts?
Why aren’t we treating mangroves as green infrastructure the same way we treat sea walls or dikes?

Some LGUs are already doing it well—Las Piñas–Parañaque, Sasmuan in Pampanga, Olango Island in Cebu, Northern Mindanao, Palawan, Davao Oriental. But these are exceptions. Most municipalities still lack clear mangrove zoning, monitoring, or community stewardship.

If the benefits are so obvious—food, protection, carbon revenue, biodiversity, climate resilience—what else are we waiting for?

We should be rolling out a national directive that:

1. Every coastal LGU must map its mangrove zones,
   
   

2. Restore degraded areas,
   
   

3. Expand existing belts, and
   
   

4. Integrate blue-carbon accounting into their climate plans.
   
   

And if any LGU needs help, I repeat what I’ve said before: I can ship you propagules. I’ve done it before, and I’m happy to keep doing it.

The world is turning to nature-based solutions. Mangroves are at the top of that list. The Philippines, blessed as it is, should be leading this movement—not following it.

Imagine earning from fisheries, earning from carbon credits, and earning from Debt-for-Nature Swaps—while strengthening our defenses against typhoons and protecting future generations.

We don’t need to invent anything. We just need to plant—and protect—what nature already gave us.

Mangroves are not just trees. They are shields. They are nurseries. They are carbon banks.
And most of all, they are a gift we cannot afford to waste.

RAMON IKE V. SENERES

www.facebook.com/ike.seneres iseneres@yahoo.com senseneres.blogspot.com 09088877282/07-20-2026

REEF BACTERIA EATS PLASTIC POLLUTION

 REEF BACTERIA EATS PLASTIC POLLUTION

Imagine this headline for a moment: A reef bacteria that eats plastic and breathes out oxygen. It sounds like science fiction—because at this point, it is. Yet the mere possibility has sparked excitement, debate, and confusion in the global environmental community. The alleged organism, dubbed Plasticus oxygenatus and supposedly discovered in the Great Barrier Reef by Australia’s James Cook University, was said to consume plastic polymers and release oxygen as a byproduct. A dream solution, right? A single microbe tackling ocean plastic, coral bleaching, and declining oxygen levels.

There was just one problem: there may be no such organism.
There are no scientific papers yet. No announcement from James Cook University. No peer-reviewed study. Environmental scientists screened the literature—nothing. It was, at best, speculation; at worst, misinformation.

But here is the part that interests me:
Why did the world react so strongly to a supposed fictional bacterium?
Because deep down, we are desperate for solutions—real solutions—to plastic pollution and dying coral reefs. And perhaps, this fictional story is pushing us to ask the right questions.

For starters, could a Philippine research team investigate whether similar plastic-eating bacteria exist in our waters? After all, plastic-degrading microbes do exist in the real world. Marine scientists have found bacteria like Ideonella sakaiensis that can break down PET plastics. Studies from KAUST show that up to 75% of ocean samples contain microbes with plastic-degrading genes. So maybe nature is already evolving solutions—just not as miraculous as the fictional version.

This brings me to the Philippines:
Why not launch our own scientific investigation?
The Department of Science and Technology (DOST) could lead it, supported by BFAR, UP-MSI, and the UP School of Fisheries and Ocean Studies. We need a timetable, a roadmap, and a deadline. Let us not wait for other countries to “discover” microbes that could also be living in our own reefs—perhaps even in Tubbataha, Apo Reef, or the Verde Island Passage.

But here’s the uncomfortable truth: even if a miracle microbe existed, it would not excuse our addiction to plastic. We cannot rely on imaginary bacteria to fix very real mountains of trash. The fastest, most reliable solution is still the simplest: reduce plastic consumption. More LGUs need to pass ordinances banning single-use plastics, and communities must adopt plastic-free practices.

Real science tells us that plastic-eating microbes degrade plastic slowly and under controlled conditions. They do not produce oxygen. They do not reverse coral bleaching. Coral bleaching is caused primarily by rising sea temperatures—not oxygen depletion. So while biology may give us tools, it cannot replace the hard work of climate action and waste reduction.

Still, I am not dismissing the idea entirely. Sometimes fiction inspires innovation. Sometimes hype leads to real scientific breakthroughs. If the idea of “Plasticus oxygenatus” motivates our scientists to explore our reefs, map microbial biodiversity, and identify plastic-degrading species, then the rumor will have done some good.

Here’s what we need now:
A national marine biotech agenda.
A database of plastic-degrading microbes in Philippine waters.
A coordinated program with DOST, BFAR, and our top marine institutes.
And most importantly, a national movement to cut plastic use at the source.

Maybe one day, we’ll discover a microbe that truly cleans the ocean. But until then, the responsibility is ours—not nature’s.

For now, let’s reduce our plastics, protect our reefs, and rely on real science, not wishful thinking.

RAMON IKE V. SENERES

www.facebook.com/ike.seneres iseneres@yahoo.com senseneres.blogspot.com 09088877282/07-19-2026

CAN WE GENERATE POWER WHILE CONTROLLING FLOODS?

CAN WE GENERATE POWER WHILE CONTROLLING FLOODS?

Yes, we can—and the truth is, we already do. The Philippines has long had the capability to generate power while controlling floods, and in some cases, we even get irrigation as a bonus. As I like to say, anywhere we have water, we can also grow fish, so why not add aquaculture to the benefits as well? That makes it a four-in-one solution: power generation, flood control, irrigation, and aquaculture. So why aren’t we building more of these?

Let’s start with our oldest model: Caliraya-Kalayaan, one of Southeast Asia’s first pumped-storage hydropower systems. Built decades ago, it is still producing nearly 797 megawatts of clean power—enough for almost three million households. But its benefits go beyond electricity. Caliraya moderates water flow during typhoons, complements irrigation systems downstream, and has even become a tourism zone. It is everything we want infrastructure to be: efficient, multi-purpose, and future-proof.

Fast forward to today, and we now have a second working model: Lake Mainit Hydroelectric Power Plant in Jabonga, Agusan del Norte. At 24.9 MW, it is smaller, but its impact is huge. Jabonga used to suffer devastating floods from Lake Mainit overflow. Today, controlled water releases help protect the town—while generating clean energy for the Mindanao grid. This is real-world climate resilience, not theoretical talk.

But here is the question that keeps bothering me: Why did it take us several decades to move from Caliraya to Jabonga? And more importantly: how soon can we bring this model to Lake Lanao, Pantabangan, Magat, Naujan Lake, or any of our country’s 200+ lakes?

To build these four-in-one systems, we need inter-agency cooperation. The Department of Public Works and Highways (DPWH) could take the lead on flood control. The National Irrigation Administration (NIA) should handle irrigation. The National Electrification Administration (NEA) and the Department of Energy (DOE) can take care of power. The Department of Agriculture (DA) can integrate aquaculture. But who will convene them? How do we break the silos?

Perhaps we need a National Water-Energy Council to push these projects faster. President Marcos Jr. has already emphasized the need for more dams and integrated water management. There is even a proposal to merge DOE and NIA for better coordination. But coordination only matters if it speeds things up—not slows things down with bureaucracy.

And while we build these mega-systems, let us not forget the opportunities at the local level. LGUs can develop retention ponds with micro-hydro turbines. Barangays can set up aquaponics linked to flood buffers. Upland areas could use small-scale hydropower to electrify remote villages while reducing downstream floods.

The truth is simple: water is power, and water is also livelihood. Every time we capture it, we reduce disaster. Every time we release it through turbines, we generate electricity. Every time we store it, we irrigate farms. And every time we keep it clean, we can raise fish.

So yes, the answer is clear.
We can generate power while controlling floods—and while irrigating farms and growing fish.
We have done it before; we are doing it now; and we can do it everywhere.

The only real question is:
When will we start treating water as the multi-purpose national asset it truly is?

RAMON IKE V. SENERES

www.facebook.com/ike.seneres iseneres@yahoo.com senseneres.blogspot.com 09088877282/07-18-2026

REGROWING FORESTS AND REVIVING WILDLIFE

REGROWING FORESTS AND REVIVING WILDLIFE

The Philippines is actively regrowing forests and reviving wildlife through new reforestation campaigns and upgraded forest policies. That much is clear. What is not clear is whether the agencies in charge of these programs are actually talking to each other.

On one hand, we have the Forest Management Bureau (FMB) of the DENR, mandated to regrow forests—through the National Greening Program, Forest Land Use Plans, and the new “Forests for Life” initiative aiming to plant millions of trees by 2028. On the other hand, we have the Biodiversity Management Bureau (BMB), which is in charge of wildlife conservation and protected areas.

But here is my question: Are FMB and BMB talking to each other? Really talking to each other?

Because we all know one basic ecological truth: when certain trees come back, certain wildlife come back. The two are inseparable. Wildlife do not survive in PowerPoint presentations or policy memos. They survive in habitats. They live in trees. They eat the fruits. They hunt in forest canopies. And if the wrong trees are planted—or if monocultures replace diverse forests—we should not expect wildlife revival to happen automatically.

Let’s take one of our most iconic species: the Philippine eagle. It does not nest in just any random tree planted under a reforestation banner. It needs primary dipterocarp forests—the towering lauan, apitong, and bagtikan species that form dense, old-growth canopies. Without these trees, the eagle has nowhere to live, hunt, or reproduce. No amount of ceremonial tree planting can change that.

Mangroves are another obvious example. When mangrove trees return, fish, crabs, shrimp, and marine life return almost immediately. Nature knows what to do—if we plant the right species in the right place.

So why don’t we have a matching database—a national ecological matrix that tells us which trees support which species? Which reforestation areas can restore which wildlife? Which sites can be optimized for biodiversity, not just for photo ops?

Who in the government is responsible for compiling this list? Should this be a joint project of FMB and BMB? Should DENR tap PhilSA, NAMRIA, and even NASA or USGS datasets to build a nationwide ecological restoration map? We have more digital tools today than at any point in our history. So why are we not using them?

Another issue is greenwashing—the practice of making a project look “environmental” even when its actual impact is questionable. Planting millions of seedlings is meaningless if they are monocultures, if they die after one dry season, or if they are planted in the wrong ecosystem. Real forests are not linear rows of seedlings; they are complex, diverse, living systems.

We also cannot forget Indigenous communities—some of the best forest stewards in the country. Many of the areas targeted for restoration or new tenure contracts overlap with ancestral domains. Any national reforestation policy that ignores Indigenous rights risks repeating old mistakes.

Still, I believe this moment offers an opportunity. The DENR is opening more than a million hectares for restoration and conservation investments. The FAO is supporting forest and landscape restoration programs. Local communities and barangays can now be partners in wildlife revival, not passive beneficiaries.

If the Philippines wants to revive both forests and wildlife, the solution is simple but long overdue: plant the right trees, in the right places, for the right species—then monitor it with real science, not slogans.

The forest will take care of the wildlife, and the wildlife will take care of the forest. But only if our agencies take care of the data, and take care of each other.

RAMON IKE V. SENERES

www.facebook.com/ike.seneres iseneres@yahoo.com senseneres.blogspot.com 09088877282/07-17-2026

DEBT FOR NATURE SWAPS ARE STILL UP FOR GRABS

 DEBT FOR NATURE SWAPS ARE STILL UP FOR GRABS

According to official statements, the Philippines is still actively involved in “Debt for Nature Swap” (DfNS) programs. I am not questioning that. What I am questioning is the silence that surrounds it. Why is there so little information coming out about what the government is doing, how far it has gone, and whether we are actually meeting our conservation or climate targets?

A DfNS is a simple concept: part of our foreign debt is forgiven, but in exchange we commit to protecting forests, marine areas, biodiversity, or climate-related assets. The mechanism is not new; what’s new is the renewed global push. As of 2025, over a dozen countries have signed fresh swaps—El Salvador closed a record-breaking US$1 billion river-conservation deal last year, while the global Debt-for-Nature Coalition has already facilitated roughly US$1.4 billion in conversions covering some 3 million square kilometers of ecosystems. Clearly, the world is moving.

But are we?

For the Philippines to succeed in DfNS programs, we need something very basic: an inventory of natural assets that are actually “swappable.” What are these assets? If these are forests, where exactly are they? What tree species are planted? What is their health status? Have these forests already matured enough to prevent landslides, flooding, or soil erosion—because that is what they are supposed to do?

Can we see these forests and protected areas on a map—an actual geographic map, not just policy documents with bullet points?

This leads me to my next question: if DfNS projects are being implemented, why are their sites not visible, identifiable, locatable? In 2025, mapping is not a luxury—it’s a minimum requirement for credibility. The National Mapping and Resource Information Authority (NAMRIA) already has satellite-derived land cover maps. PHIVOLCS has hazard maps. PhilSA (our space agency) now has imaging capabilities. Combine these three datasets and we would already have a working geospatial baseline for DfNS and carbon credit projects.

Add to that the publicly accessible data from NASA, USGS, JICA, and Google Earth Engine, and we could have the most complete environmental monitoring map this country has ever produced.

Yet, where is it?

Let me raise another point: DfNS and carbon credit schemes should go hand in hand. One protects nature; the other monetizes conservation. Forests, mangroves, peatlands, and seagrass beds are not just “nice to have”—they absorb carbon, reduce disaster risks, and can be translated into carbon credits. So where are these carbon credit projects? Are these simply tree planting programs? Does the National Greening Program (NGP) form part of a larger carbon strategy or is it still trapped in the annual cycle of planting without long-term verification?

As the Department of Finance continues discussions with the U.S. Treasury on new debt-for-nature and debt-for-climate swaps, we must be ready with verifiable, measurable, and mappable natural assets. Otherwise, we risk offering commitments we cannot quantify—much less prove.

And yes, I understand that DfNS programs require technical work, policy alignment, and international negotiations. But transparency is just as important. If the government wants public support for climate finance innovations, then it must show us the data, the maps, the numbers—and the forests.

Debt-for-nature swaps are still up for grabs. The question is whether the Philippines is ready to grab them.

RAMON IKE V. SENERES

www.facebook.com/ike.seneres iseneres@yahoo.com senseneres.blogspot.com 09088877282/07-16-2026