Coastal cities have added 2500 square kilometres of new land since 2000

An analysis of satellite images taken since the year 2000 found that hundreds of the most populous coastal cities have added land, which is now vulnerable to sea level rise


21 February 2023

Coastal cities have added a significant amount of land over the past 20 years


More than 2500 square kilometres of reclaimed land has been added to coastal cities in the 21st century, increasing the areas threatened by sea level rise.

People have been building new land for centuries, from the Netherlands to the San Francisco Bay Area. But the pace has picked up in the new millennium.

Hundreds of coastal cities have added land since the year 2000, from sea walls in Shanghai, China, that have captured river sediment to build …


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