Managed Aquifer Recharge (MAR): Protecting Communities from Saline Intrusion of Groundwater in Costal Areas of Bangladesh


Climate change is leading to rising sea levels and more extreme weather events, which can destroy WASH facilities and lead to saline intrusion of coastal fresh water aquifers. In coastal areas of Bangladesh, approximately 20 million people are exposed to the threats of increasing saltwater intrusion into surface and ground water sources. In response to the crisis, UNICEF and partners have piloted and scaled-up Managed Aquifer Recharge (MAR), a technique which collects and treats water from ponds and roofs (rainwater) and injects it underground for storage and future use. This scaleable resilient technology option is an ideal solution for creating sustainable access to safe water in costal communities affected by climate change.

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