Subsidence and Sea-Level Rise Amplify U.S. Flood Risks
Coastal cities worldwide are facing increased flood risks due to the combined effects of land subsidence and sea-level rise, according to a study published in Nature. In the United States, cities such as New Orleans, Houston, and Norfolk are experiencing measurable land subsidence, which lowers ground elevations and exacerbates the impact of rising sea levels. This phenomenon is also observed in global cities like Jakarta, Bangkok, and Shanghai, where subsidence further intensifies flood hazards. The study highlights the urgent need for mitigation strategies to address these compounded risks in vulnerable coastal regions.
