Bangladesh A Nation’s Struggle for Water Sovereignty
08/22/2024
The Silent Strain: Bangladesh’s 50-Year Struggle with Cross-Border Water Deprivation, Floods, and Siltation
In the heart of South Asia, where mighty rivers once breathed life into the land, a quiet tragedy has unfolded over the past 50 years. This is the story of Bangladesh’s ongoing struggle with the mismanagement of cross-border rivers by its neighbor, India. What began as a partnership in shared water resources has turned into a source of severe suffering for Bangladesh due to India’s water diversion practices, the seasonal release of barrage gates causing floods, and the detrimental effects of siltation.
The Shifting Course of the Rivers
In the 1970s, India began large-scale water diversion projects, notably the construction of the Farakka Barrage on the Ganges River. Intended to prevent siltation in Kolkata’s port, this project drastically reduced water flow to Bangladesh, especially during the dry season. The once-fertile lands of the Bengal delta began to dry up, turning lush fields into barren land. The altered river flow diminished the river’s ability to recharge groundwater, sustain agriculture, and maintain the natural ecosystem.
The Dual Threat: Drought and Devastating Floods
The impact of these water management practices isn’t limited to drought. During the monsoon season, the situation reverses disastrously. India often releases excess water by opening barrage gates to prevent flooding on its own side, which then inundates downstream regions in Bangladesh. The sudden surge of water overwhelms the country’s rivers and floodplains, causing catastrophic floods that submerge vast areas, destroy crops, homes, and infrastructure, and displace millions of people.
These floods, exacerbated by upstream water management decisions, have turned what should be a natural part of Bangladesh’s ecology into a recurring humanitarian crisis. The 1988, 2004, and now August 2024 floods, some of the most devastating in Bangladesh’s history, are reminders of how the release of water from upstream barrages can escalate into widespread devastation.
The Slow Death: Siltation and River Degradation
Another consequence of the irregular water flow is the problem of siltation. The reduced flow of water during the dry season leads to increased deposition of silt in riverbeds. Over time, this silt builds up, raising the riverbeds and reducing the carrying capacity of the rivers. As a result, rivers become more prone to flooding during the monsoon when water levels rise suddenly. The accumulation of silt also alters the natural course of rivers, affecting navigation, reducing the availability of freshwater, and contributing to the degradation of aquatic ecosystems.
In many areas, the siltation has caused rivers to become shallower, making them less navigable and further limiting their use for irrigation and transportation. This degradation of river systems has a cascading effect on agriculture, fisheries, and local economies, exacerbating the challenges faced by communities that depend on these rivers for their livelihoods.
The Drying Fields and Suffering Farmers
When the floodwaters recede and the siltation continues, the land is often left with silt and debris, further reducing its fertility. In the dry season, the reduced flow from rivers like the Ganges exacerbates water scarcity, making irrigation increasingly difficult. Farmers, once reliant on these rivers, now struggle with lower crop yields and increased soil salinity, leading to widespread agricultural decline. The impact on rural economies has been severe, with many families forced into poverty as they lose their primary source of income.
The Vanishing Rivers and Disappearing Livelihoods
Beyond agriculture, the mismanagement of these rivers has severely impacted fisheries, another cornerstone of Bangladesh’s economy. Reduced water flow, pollution, and siltation have decimated fish populations, leaving fishing communities in despair. The wetlands, essential for biodiversity, have shrunk significantly, and the delicate balance of fresh and saltwater in the Sundarbans mangrove forest—a UNESCO World Heritage site—has been disrupted, threatening its unique ecosystem.
The Human Cost
The Ecological degradation, frequent flooding, and increasing siltation have profound social consequences. The drying rivers and frequent floods have increased poverty, malnutrition, and disease. Coastal areas, already threatened by rising sea levels, suffer additional hardships when saltwater intrusion from reduced freshwater flow contaminates drinking water and agricultural land. Public health crises, driven by waterborne diseases and malnutrition, have become more frequent and severe.
A Nation’s Struggle for Water Sovereignty
For decades, Bangladesh has sought fair water-sharing agreements with India, but the complexities of international water politics have made resolution difficult. The 1996 Ganges Water Sharing Treaty was a step forward, but it hasn’t fully mitigated the problems. Seasonal variations in water flow, continued upstream projects, and ongoing siltation issues keep Bangladesh in a precarious position, with its people bearing the brunt of the consequences.
Conclusion: The Need for Cooperation
The story of Bangladesh’s 50-year struggle with cross-border water deprivation, flooding, and siltation underscores the critical importance of sustainable and equitable resource management. Without effective cooperation between Bangladesh and India, the cycle of drought, floods, and siltation will continue, leaving the people of Bangladesh to suffer the consequences. As Bangladesh continues to push for a more balanced and just approach to water sharing, the lessons from this ongoing crisis will be essential in shaping a future where both nations can thrive.
Syfullah Arif
President
Center for Bangladesh Development
Texas, USA