london houston and the one sinking at the fastest rate jakarta parts of the indonesian capital have already dropped 4 metres the reason rising sea levels for one but that's not the only culprit local residents are steadily depleting the ground water supply below the city that basically creates an air pocket into which the earth above it sinks attempts to curtail this development have proven difficult because almost half of 2 cartons rely on groundwater for their day to day needs. our reporter michelle vessel went to jakarta to find out more. it's been a while since anyone prayed in this mosque in north. the sea has long since claimed it. it makes. it every time he sees the