What is the salinity intrusion problem in coastal Bangladesh?
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Salinity intrusion in coastal Bangladesh occurs when saltwater from the Bay of Bengal moves inland through rivers and canals, contaminating freshwater sources. This is worsened by sea level rise from climate change, reduced upstream freshwater flow, and cyclone-induced storm surges. Salinity affects drinking water, agriculture (crops die or yield less), and freshwater fisheries. Solutions include rainwater harvesting, pond sand filters, desalination plants, and salt-tolerant crop varieties. Millions of coastal residents are affected, with women particularly impacted as they collect household water.