... freshwater and sediment flows have been rapid declines in the environment of the delta, including saline intrusion into deltaic land and aquifers, and impacts on delta fisheries and mangroves ... resources; and the environment at strategy, program, and plan levels.Biodiversity, Climate Change, and AdaptationThe World Bank has a large and growing portfolio of investment in biodiversity conservation. ... ServicesFlow regulation • Storage and release of flood peaks in wetlands; recharge of groundwaterSediment transport• Maintenance of river channel, wetland, and estuary form and function; provision of...