The OSM and geospatial data have also helped identify areas with water shortage by presenting a detailed overview of roofs and water tanks available in houses spread across different wards: for instance, the maps have shown an absence of rooftop tanks in Ward 7, indicating water scarcity.
At Kanthu Tole, farmers use plastic bags, pots and styrofoam as containers to grow food on, and Narayan Thapa of the Geometrics Engineering Society says farmers can also experiment with vertical farming to increase the area under cultivation.
Researcher Rehana Shrestha is confident that the project will infuse a new passion for rooftop farming, especially among younger members of households.
“Projects like this provide opportunities for the empowerment of youth, cultivating a generation of young leaders, to create resilient communities,” she says. “And with climate-induced disasters, urban farming is more necessary than ever.”
Read more: Four years later, Nepal’s farmers rise from the rubble,