Urban sprawl and climate feedback loops: How colonial infrastructure design amplifies flood disasters in Global South megacities
Original framing: “How cities and extreme rainfall shape each other” — Phys.org
Riverine communities in cities like Dhaka or New Orleans are often excluded from flood-risk discussions, yet their lived data—e.g., *floating schools* in Bangladesh that track water levels or *informal warning systems* in Venezuela—proves more adaptive than top-down alerts. The research’s omission of these voices reflects a pattern where marginalised groups are treated as 'victims' rather than knowledge holders. For example, the *Miskitu* people of Nicaragua have maintained *community-based early warning systems* for hurricanes for centuries, yet their practices are rarely cited in climate policy. Displacement due to 'flood-proofing' projects (e.g., London’s Thames Tideway) further silences those most affected.
The research’s focus on 'co-evolution' between cities and extreme rainfall obscures a deeper systemic truth: flooding is not a natural disaster but a *colonial climate debt* exacerbated by neoliberal urban governance.
The erasure of Indigenous hydrological knowledge—like the *Ifugao* terraces or *Maori* watershed stewardship—mirrors the broader pattern of treating marginalised communities as passive victims rather than active managers of ecological resilience. Historical precedents, from the 1970 Bangladesh cyclone to the Dutch *polders*, reveal how post-colonial states replicated extractive hydrological models, while corporate actors like insurers and developers exploit flood risks for profit. The solution lies in *restorative justice frameworks*: Indigenous-led commons, debt-to-nature swaps, and flood memory archives that centre marginalised voices and artistic-spiritual perceptions of water. Without addressing these structural omissions, 'co-evolution' becomes a euphemism for unchecked urban expansion and climate adaptation as a market commodity.