While unbearable summer heatwaves make daily life miserable, excessive heat and prolonged dry spells cause rapid evaporation from the soil, canals, wetlands, and other water bodies. Conversely, the lack of adequate rainfall during the monsoon disrupts the natural replenishment of water. Consequently, the volume of water returning to nature falls short of the amount being lost from various sources. This shift in the seasonal cycle is a major cause of the water crisis. Due to insufficient rainfall, many farmers are forced to rely on irrigation for crop production even during the monsoon season. As a result, groundwater extraction continues unabated during the very period when rainwater should ideally meet agricultural water needs and replenish groundwater reserves. According to the 2023–24 Minor Irrigation Survey, irrigation facilities cover approximately 5.77 million hectares of land in the country, with nearly 72 percent relying on groundwater. Consequently, the drive to increase food production is pushing water sources toward a crisis. In Bangladesh, the groundwater crisis is no longer a mere future apprehension; it has already become a stark reality. The impact is particularly severe in urban areas. Cities like Dhaka, Rajshahi, and Chattogram are witnessing hindered groundwater recharge due to unplanned urbanization, industrialization, excessive water extraction, and the filling of wetlands. The situation in the capital, Dhaka, is especially alarming. Reliance on deep tube wells is constantly increasing to meet the capital's water demand. By 2026, the number of active deep tube wells in Dhaka reached 1,351, up from 906 in the 2020–21 fiscal year. This significant increase over just a few years illustrates the immense pressure on the capital's water supply system. Dhaka’s daily water demand is approximately 3.1 billion liters, of which about 2.2 billion liters are extracted from groundwater sources. Various studies indicate that excessive extraction is causing Dhaka's groundwater level to steadily decline, potentially leading to a major water crisis in the future. While vast quantities of water are being extracted, the natural pathways for soil to absorb water are being blocked by the extensive use of concrete in roads and infrastructure, unplanned construction, and the filling of canals and wetlands. As a result, rainwater cannot adequately penetrate the soil, thereby impeding groundwater recharge. If this trend continues, a situation may arise where it becomes impossible to extract sufficient water, even with deep tube wells. Some of these effects are already visible; during Dhaka's intense heatwaves, obtaining adequate safe water becomes difficult in many areas. In some places, the use of unsafe water is leading to outbreaks of waterborne diseases. By jeopardizing safe water sources, humanity is essentially putting its own lives and future at risk. Even in rural areas, obtaining sufficient water from tube wells is becoming difficult in many locations during the dry season. A water crisis not only disrupts daily life but can also have long-term consequences for the national economy. A water crisis in the agricultural sector would drive up irrigation costs for farmers. Consequently, the cost of food production would rise, potentially impacting market prices. Such a crisis could further exacerbate the burden of soaring commodity prices already weighing on the country's low- and middle-income populations. The consequences of excessive water extraction could also be severe in coastal regions. The situation could worsen significantly if groundwater depletion is compounded by rising salinity and the risk of arsenic contamination. Thus, the water crisis is not merely an environmental issue; it is deeply intertwined with public health, agriculture, food security, and the economy. It is imperative to adopt appropriate measures and sustainable plans now to safeguard water sources for future generations. Alongside the administration, the general public must also become aware of this issue. Effective steps must be taken to regulate groundwater usage, harvest rainwater, protect wetlands and canals, curb unplanned urbanization, and prevent water wastage. Everyone must remember that water is not just a resource to meet today's needs; it is a fundamental pillar of life and existence for the future. Therefore, we must take immediate action to conserve water sources by putting an end to indiscriminate extraction and wastage. After all, safeguarding the future of water means safeguarding our own future.
