Floating gardens and houses on stilts

Is this what our future is going to look like?

With climate change accelerating, sea levels rising, and floods becoming the “new normal,” I think we should at least entertain the possibility. And if that future does come, it won’t be entirely unfamiliar. After all, floating gardens and houses on stilts already exist—not only in faraway places, but right here in the Philippines.

In many ways, these designs are not futuristic at all; they are ancient, time-tested responses to living with water rather than against it. The Bajau Laut in the Sulu Archipelago have lived in stilt houses above coral-rich shallows for centuries. In Bangladesh, floating gardens—known as dhap—keep food production going even during months of flooding. In Myanmar’s Inle Lake, floating tomato farms stretch across the horizon. And in Mexico, the Aztec chinampas remain as living proof that agriculture can thrive on water.

So, if others have done it, why can’t we?

But here’s the bigger question: Should we change the way we build and farm? I think the real answer is yes—if the alternative is to continue building houses on land that is repeatedly submerged, or farming on plains that turn into lakes every rainy season. Maybe the problem is not that the water is rising, but that we haven’t risen to meet the challenge.

If floating gardens can secure food supply even in flood-prone areas, shouldn’t they be part of our national conversation on food security? Imagine low-cost rafts made of bamboo, coconut lumber, and water hyacinth—materials we already have in abundance—producing vegetables year-round. Countries like Bangladesh and South Sudan are already doing this out of necessity. Why aren’t we?

Of course, floating gardens are not the only solution. Vertical farms—stacked, climate-controlled, soil-free—are no longer sci-fi. Singapore is doing it. Japan is doing it. Even Manila has a few small prototypes. If we combine high-density housing with vertical farming, then the skyscrapers of the future could be more than just condos. They could be places where people live, work, farm, shop, exercise, even pray—all in the same building. Some modern condominiums already hint at this model, with rooftop gardens, hydroponics, and co-working spaces.

If rising water forces us to rethink our architecture, why not rethink it boldly?

But for any of this to happen, we need something the government rarely does well: looking ahead. We need building codes that allow houses on stilts—not as an exception, but as a legitimate urban design option. We need agricultural programs that support floating gardens as much as traditional farmland. We need zoning laws that understand that some areas will always flood, and instead of resisting water, we should adapt around it.

The future may be wet—but that doesn’t mean it has to be bleak. Our ancestors lived in harmony with water; maybe we’re the ones who forgot how. If we revive that wisdom and combine it with modern science, the Philippines could become a global model for climate-adaptive living.

We can choose to be victims of rising waters—or we can become architects of a floating future.

 

What is the difference between flood control and flood management

Flooding is becoming an all-too-familiar nightmare in our country, but it seems our understanding of how to deal with it hasn’t caught up. We keep talking about flood control, but what we truly need—and what we rarely deliver—is flood management.

To put it simply: flood control means building things to stop flooding. Think dams, levees, floodwalls, retention basins—the physical, structural defenses. On the other hand, flood management is smarter. It’s holistic. It combines those very structures with policy, planning, early-warning systems, smart zoning, and community preparedness.

In other words, flood control is just one piece of the puzzle. It’s like elementary school: basic, essential, but limited. Flood management, by contrast, is graduate school—it demands deeper thinking, systems-level solutions, and long-term strategy.

So why has our Congress focused almost exclusively on flood control? Why the obsession with concrete dikes and ditches? Because flood control is tangible, visible. It shows up in the budget, in construction contracts, in ribbon-cutting ceremonies. But that visibility can also be a smokescreen. There have been repeated reports of substandard flood control works, overpriced projects, even “ghost” projects.

The Department of Public Works and Highways (DPWH) has admitted that we don’t yet have a genuine, integrated master plan for floods. We’re doing piecemeal projects—dikes here, drainage channels there—but no coordinated nationwide strategy. That fragmented approach speaks volumes about how shallow our interventions are.

Meanwhile, politicians like Senator Juan Miguel Zubiri have called out this piecemeal budgeting as a major problem. Rather than a few big, well-designed programs, what we get is scattered funds for projects that may or may not work. And critics argue that many of these projects serve the interests of contractors more than the safety of communities. Senator Panfilo Lacson has long warned of corruption and anomalies in flood control funds.

So yes, it’s time we moved beyond just building dikes. We need flood management—a smarter, broader, more resilient system. Here’s what that would look like:

Integrated planning across agencies—Local governments, national agencies, and communities must coordinate. Flood management isn’t just DPWH’s job.

Land‐use policy and zoning—We should discourage settlements in flood-prone areas. Instead, we should direct growth toward safer zones.

Early-warning systems and community education—Technology matters. Alerts, evacuation routes, flood drills—all of these save lives, not just infrastructure.

Nature-based solutions—Restore wetlands, reforest riverbanks, rehabilitate floodplains. These act as natural sponges when the rains come.

Advanced technological tools—Flood prediction can be strengthened by data analytics, AI, even satellite monitoring. We can also use fluid-dynamics models to understand how water moves through our systems.

Policy reform backed by legislation—Bills being discussed in Congress already reflect this.

We must spread the responsibility, not just leave it to DPWH to drop concrete where water flows. That’s what flood management calls for: a system that is both structural and adaptive. It requires long-term vision, multi-party cooperation, and yes, brighter minds.

If we continue treating flood control as our endgame, we will keep repeating the same mistakes. But if we embrace flood management—real, integrated, people-centered flood management—we just might break the cycle of flood disaster in this country.

“Insanity is doing the same thing over and over again and expecting different results.” It's a reminder that changing outcomes requires changing structures, feedback loops, or mental models—not just repeating actions within the same paradigm.