Scienceenvironment
Major cities worldwide are sinking, satellite data reveal
Land subsidence, the gradual sinking of the ground, poses a significant threat to global urban areas, damaging infrastructure and increasing flood risks. Historically, assessing these dynamics has been challenging due to fragmented methods and limited regional scopes. New satellite data analyses aim to bridge this knowledge gap, offering comprehensive insights that help policymakers identify high-risk zones and implement urgent interventions to protect vulnerable metropolitan populations.