74,000 square kilometers of the Atlantic coast are subsiding at a rate of 2 mm per year, affecting 14 million people and 6 million properties. More than 3,700 square kilometers are falling by more than 5 mm per year, outpacing even sea level rise. Collapses weaken levees, roads and airports, leaving them vulnerable to storm surges and flooding. Different subsidences, where different areas sink at different rates, can further exacerbate the problem, potentially destroying buildings and damaging infrastructure.
The research underscores the need for urgent action. Early interventions, such as regulating groundwater extraction, can significantly reduce subsidence and save billions in costly infrastructure repairs and reconstruction.
Source: Ferra
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