|New York City sinking four millimetres a year
New York City is sinking by up to four millimetres a year because of its skyscrapers. Its 1,080,000 buildings weigh around 764 billion kilograms. There is additional weight from furniture, transport infrastructure, and the city's 8.5 million people. Dr Tom Parsons said the slow sinking plus rising sea levels could mean New York has more natural disasters. New buildings could increase flooding especially along coasts.