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Wastewater Mapping and Wetland Siting for Urban Cooling in Nepal
Implementing Partner: Build Change
Project name: Wastewater Vulnerability Mapping and Identifying Wetland Construction Sites to Cope with Urban Extreme Heat and Cooling the Local Environment of Birgunj Metropolitan City, Nepal
Wastewater mismanagement in regions like Nepal, illustrated by Birgunj’s polluted Sirsiya River, poses serious environmental and social threats.
This study integrates policy, spatial, and social perspectives to tackle water pollution and urban heat. Using stakeholder engagement and vulnerability mapping, it recommends constructed wetlands to enhance microclimates and water quality.
The research promotes public health, supports riparian equity, and contributes to SDG 6, delivering scalable, climate-resilient strategies for sustainable urban water management.
surface temperature
near wetlands
Nepal’s urban areas
Impact and Key Findings
1
Urban wetlands reduce temperatures through natural evaporation, helping cool surrounding areas. By easing heat stress, they make neighbourhoods safer and more livable, especially for vulnerable communities facing extreme heat in densely populated cities.
2
Mapping wastewater vulnerability guides precision interventions, ensuring constructed wetlands address both pollution and heat stress. This approach strengthens climate-adaptive urban infrastructure, boosts resource efficiency, and fosters healthier, more resilient environments for urban communities.
3
The project advances heat resilience by equipping local authorities with actionable insights for evidence-based urban planning, integrating nature-based solutions into sustainable development and disaster risk frameworks to promote climate-adaptive, healthier urban environments.
