Satellite Data Exposes a Hidden Flood Threat Endangering 236 Million People

People have settled on river deltas for millennia, drawn by fertile soil, fresh water, and abundant food sources. Today, these areas are among the most densely populated in the world, but the hundreds of millions of people who live there face a growing threat.

Coastal flooding is disproportionately affecting river delta populations, forcing them to contend with infrastructure damage, saltwater intrusion, and erosion. One reason for this is climate-driven sea level rise, but a study…