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This case study documents the community-led efforts of Kamarkhali village in north-central Bangladesh to combat accelerating riverbank erosion along the Someshwari River. Through the formation of a resistance committee, non-violent protests, and multiple attempts to build embankments, the community eventually secured government assistance to construct a sandbag embankment completed in April 2021.

This policy brief analyzes the relationship between climate-related hazards—specifically inland flooding, storm surges, and riverbank erosion—and long-term migration patterns in Bangladesh. Using historical census data and World Bank projections, the authors estimate that an additional 9.6 million people are likely to migrate from affected upazilas (sub-districts) between 2011 and 2050. The document advocates for government interventions in employment skills training and urban planning to support migrants and reduce disaster risks in cities.