Major cities worldwide are sinking, satellite data reveal
Key Takeaways
- Land subsidence threatens urban infrastructure and increases flood risks globally.
- Previous assessments lacked standardization and comprehensive global scope.
- Satellite data now enables consistent tracking of sinking cities.
- New insights help policymakers target urgent infrastructure interventions.
Land subsidence involves the gradual sinking of the ground, threatening buildings, foundations, and critical drainage systems while heightening flood risks. Previous assessments suffered from inconsistent methodologies and limited geographic focus, complicating global comparisons.
Recent advancements leveraging satellite data provide a clearer, more standardized picture of subsidence dynamics. This improved visibility is crucial for policymakers seeking to pinpoint intensifying risks and direct timely interventions.
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