Shanghai, China’s largest city, is literally sinking because too many big buildings have been constructed there during the building boom of the last ten years. Skyscrapers made of heavy concrete and steel have been built over an area that was originally a drained swamp, and some of them may have to be taken down.
Rupert Wingfield-Hayes writes in BBC News that 3,000 high-rise buildings have gone up in the last decade and another 2,000 are in the planning stage. These plans may change, however, if the city sinks below the level of the Huang Pu river, which would cause constant floods. Some of the buildings still standing may have to be torn down and replaced with smaller, lighter weight construction.
Big changes will have to come, or it may be our final hour.
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