Enhancing Safe Drinking Water Security and Climate Resilience Through Rainwater Harvesting

Amidst the pressing issue of severe freshwater salinization and contamination affecting over 35 million people in coastal Bangladesh, this project addresses safe drinking water security and climate resilience in Mongla Upazila. By implementing rainwater harvesting solutions, the initiative aims to provide a reliable source of safe drinking water, especially for saline-affected areas, improving health outcomes and mitigating waterborne diseases.

Researchers: Rohini Kamal; Sonia Afrin; Md. Mohsin Hossain

Partner: BRAC Climate Change Programme

Timeline: 2022–2024

Status: Ongoing

Contact: Dr Rohini Kamal


Coastal Bangladesh grapples with the severe impact of freshwater salinization, threatening the well-being of over 35 million individuals. This project seeks to combat the pressing issue of safe drinking water scarcity by leveraging rainwater harvesting solutions, thereby enhancing community health outcomes while addressing climate-induced water challenges in Mongla Upazilla.


The project strives to establish reliable access to safe drinking water in Mongla Upazila through rainwater harvesting, prioritizing the health and resilience of communities facing water contamination. Its overarching goal is to alleviate the burden of waterborne diseases and enhance climate resilience among the most vulnerable populations.


This study assesses water security and climate resilience in Mongla Upazila with a mixed-method approach. The sample size of the quantitative survey is 1200 households from Mongla and Morrelganj Upazilla. It employs a quasi-experimental method for impact evaluation of the project. The project’s baseline assessment was conducted in 2022, and the subsequent end-line evaluation is scheduled for 2024, spanning a two-year period.

Findings and Recommendations