Developing countries need to rethink their reliance on concrete.

Every development decision is, at its core, a policy choice between alternatives.

Governments do not decide whether to invest, but where to invest, how to invest, and—most consequentially—what kind of future that investment is meant to produce. Roads instead of rail. Flyovers instead of buses. Concrete instead of ecosystems. These choices are rarely neutral. They reflect political priorities, institutional habits, and deeply held assumptions about what “development” is supposed to look like.

Sindh’s recent investments in Karachi’s waterways make one such choice unmistakably clear. The provincial government has demonstrated a willingness to allocate resources toward protecting and servicing a city that remains Pakistan’s economic engine and political pressure point. How much Karachi should receive, and at whose expense, is a legitimate and necessary debate—one I will return to shortly.

For now, a simpler and more unsettling question demands attention: why did we choose cement?

Pakistan is among the world’s most climate-vulnerable countries. Floods, droughts, sea intrusion, groundwater depletion, and extreme heat are no longer distant risks; they are lived realities. In this context, continuing to pursue development models imported wholesale from temperate, water-secure, industrialized countries is not merely ill-suited; it is also unsustainable. It is dangerous.

Concrete riverbanks and cemented waterways embody a particular vision of progress—one that privileges control over resilience, speed over absorption, and visibility over sustainability. This model assumes that nature must be straightened, restrained, and hardened to serve expanding populations.

Yet across the world, that assumption is being re-examined. From Europe to East Asia, governments are tearing out concrete embankments, restoring floodplains, and reintegrating rivers into living systems. The reason is empirical rather than ideological: decades of evidence indicate that hard engineering often increases downstream flood risk, accelerates groundwater depletion, destroys ecosystems, and locks states into costly cycles of maintenance and repair.

Pakistan faces far higher climate exposure and far fewer fiscal buffers than the countries now reversing course—and yet it is moving in precisely the opposite direction.

What makes this trajectory especially striking is that Pakistan itself offers one of the world’s earliest and most successful examples of climate-adaptive water engineering.

More than four millennia ago, the planners of Mohenjo-daro built a city designed not to dominate the Indus River, but to live alongside it. Its elevated platforms, sophisticated drainage systems, flood-resilient urban layout, and water-management practices were explicitly calibrated to seasonal river behavior. That intelligence—engineering with water rather than against it—is precisely why Mohenjo-daro still stands.

The irony is difficult to miss. The same civilization laid the foundations of irrigation systems that would later transform the Indus Basin into one of the most productive agricultural regions on Earth. The human capital it produced—knowledge of sediment, soil, seasonal flows, and ecological balance—remains one of Pakistan’s greatest, and most underutilized, comparative advantages.

Yet modern development has steadily sidelined this inheritance.

Instead of empowering hydrologists, agronomists, ecologists, water managers, and riverine communities—people whose expertise is rooted in living systems—policy defaults to cement, machinery, and short-term construction contracts. The result is infrastructure that looks modern, photographs well, and performs poorly under climate stress.

If Pakistan is serious about resilience, it must invest not only in structures but in people.

Invest in human capital that understands water, land, and ecosystems, and those people will build the nation Pakistan claims it wants to become. Invest instead in concrete alone, and the output will be predictably narrow: more concrete, deeper institutional dependency, and systems that fail when nature refuses to comply.

Sindh, facing greater climate risk and fewer fiscal buffers than most regions experimenting with hard engineering, can least afford this mistake. The province is not choosing between tradition and modernity; it is choosing between adaptive intelligence and rigid imitation.

History has already shown which one endures.

Supporters of cement-intensive interventions often argue that Karachi requires immediate solutions—and there is merit in that. Waterways had to be cleared. Flood channels needed attention. Urban populations require protection.

But adding concrete to a fragile river system is like attaching an acrylic nail while ignoring that both hands are being severed.

What happens when the Indus Delta continues to starve of freshwater? When sea intrusion worsens? When does groundwater collapse? When upstream withdrawals intensify? A cemented channel may function today, but it cannot compensate for a collapsing river system tomorrow.

Development that treats symptoms while accelerating systemic failure is not development. It is a postponement.

A more credible policy response—one grounded in global evidence rather than nostalgia or idealism—is neither radical nor utopian: invest in nature-based systems rather than cement-intensive infrastructure.

This means restoring natural waterways, resloping riverbanks, reconnecting floodplains, expanding wetlands, planting native vegetation, and, critically, advocating more vigorously for sustained freshwater flows into the delta.

Why does this matter across time horizons?

In the long term, investing in cement production creates expertise and livelihoods in cement. That is not a moral failing of workers; people adapt to the opportunities states create. But investing in nature-based adaptation builds durable human capital in water management, ecosystem restoration, forestry, agriculture, and climate resilience—skills that will only grow more valuable as environmental pressures intensify.

In the medium term, natural systems recharge groundwater, support fisheries and agriculture, improve water quality, and broaden income generation for the majority of Pakistan’s population—not just urban contractors and developers.
Dubai builds over nature because it has little of it. Sindh has rivers, floodplains, forests, and a delta. Development should be organized around these assets, not poured over them.

In the short term, nature-based strategies strengthen Sindh’s legal and political position as a lower riparian. They reinforce the argument that downstream ecosystems require water to survive—an argument that is relevant in negotiations with upper riparians, including Punjab, India, and China.

The most common defenses for cement are cost and speed. Yes, cement often appears cheaper under narrow, short-term accounting. But what of the losses to groundwater, ecosystems, fisheries, agriculture, and the natural flood cycle? Cemented channels behave like false irrigation canals—accelerating runoff, disrupting flows, and extracting value from the delta to sustain the city.

Others argue that nature-based solutions take too long. That is true. But it is also precisely why they should have begun years ago. Delay is not an argument against action; it is an argument for urgency.

Finally, some suggest that adaptation requires accepting worst-case scenarios rather than contesting them. That logic is perilous. Planning for risk should not mean surrendering claims to equitable water rights. Sindh must adapt—but it must also fight.

This debate is not anti-Karachi. It is not anti-government. It is pro-future.

Pakistan cannot afford development models that undermine the systems sustaining it. Cement offers the illusion of control. Resilience lies in systems that bend, absorb, and regenerate.

The question is no longer whether adaptation will occur, but whether it will be done wisely.