this creates serious environmental and health risks given the inadequate wastewater and solid waste management system inadequate maintenance and the possibility of accidental releases of unmonitored toxic chemicals and waste from industrial and port areas require upgrading of the city s storm drainage systems other hard infrastructure elements include ecobased adaptation measures such as retention ponds creation of public open spaces or zoning restrictions in floodprone corridors early warning systems for floods business continuity plans bcps and disaster insurance and funds green infrastructure in particular includes adaptive solutions that allow making space for water a concept now widely adopted in floodprone countries like the netherlands