TRAVEL GEEKS


THE INFO SINKING CITIES


A RECENT STUDY* HAS REVEALED THAT THE IRANIAN CAPITAL, TEHRAN, IS SINKING AT AN ALARMING RATE. WE LOOK AT OTHER CITIES AT RISK OF VANISHING BENEATH THE WAVES, AND POSSIBLE SOLUTIONS


ALEXANDRIA Egypt’s main port city could be completely submerged should water levels rise by 6ſt


MIAMI Experts forecast that by 2040, the sea level in parts of Miami could rise between 13 and 34 inches


TIANJIN Since the 1950s, parts of the Chinese city’s coastline have sunk by up to 9ſt


NEW ORLEANS Some coastal areas are sinking by up to 2 inches a year


JAKARTA Home to nearly 10 million people, the Indonesian capital is one of the fastest- sinking cities in the world, lowering at a rate of 9.8 inches a year. Researchers say parts of the city could be entirely submerged by 2050


23 BANGKOK: Chulalongkorn


University created an 11-acre park


designed to drain millions of litres of water


NASA/European Space Agency data suggests parts of a 444-mile aqueduct in California sank over 23 inches from 2013 to 2016. California’s San Joaquin Valley — whose cities include Stockton and Fresno — is sinking by the same amount per year, too


Tehran IRAN


Tehran


of Tehran’s urban area is affected by sinking


10 inches 10%


The amount the western Tehran Plain is sinking per year


2 inches


How much the international airport is sinking each year


WHY ARE OUR CITIES SINKING?


For a number of reasons, both man-made and natural. These range from rising sea levels to subsistence in


metropolises caused by the weight of buildings and people, and the interaction of geological and climatic factors


SOLUTIONS AROUND THE WORLD


VENICE: Built on soſt soil,


Venice tackled


sinking by using lighter materials to construct buildings


TOKYO: By setting limits on the extraction of


groundwater, the Japanese capital has stopped


sinking completely


ROTTERDAM: The Dutch city has


turned car parks into emergency


reservoirs as part of measures to


tackle subsidence This is a sample edition. Please click here to subscribe and read more...


SOURCE: *GFZ GEOFORSCHUNGSZENTRUM POTSDAM, HELMHOLTZ CENTRE


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