NASSIR: Coastal cities hold the key to saving our oceans

In a letter signed “NASSIR,” the author argues that coastal cities are decisive for protecting oceans, especially as urban populations grow. Writing as world leaders meet in Mombasa to discuss the future of ocean health, the piece says more than 40% of the world’s population lives within 100 km of a coastline, increasing demand for housing, sanitation, transportation, water, and waste systems. When city growth outpaces infrastructure, untreated wastewater and poorly managed solid waste can reach rivers and coastal waters, while mangrove loss weakens natural coastal protection. The author frames local governments as “frontline” decision-makers, citing sewerage, waste collection, land-use planning, drainage, housing developments, and environmental protection as key levers. The article also references investment in Mombasa, praising President William Ruto for committing $20 million to modernize and rehabilitate the sewerage infrastructure on Mombasa Island.