The geographer calculated that sea level rise will submerge 5% of a 900 km² coastal city every 10 years. After 20 years, how many square kilometers will remain above water?

Sat, 09 May 2026 03:31:46 +0000

Title: How Sea Level Rise Will Finally Reshape a 900 km² Coastal City: What Remains After 20 Years? Rising sea levels due to climate change are slowing the pace of coastal inundation—but data reveals a sobering long-term outlook. According to recent geographer calculations, a 900 square kilometer coastal city stands to lose 5% of its land area every 10 years to rising oceans. But how much will remain after 20 years—and what does this mean for communities, infrastructure, and future planning? ### The Submerged Timeline: A Decade-by-Decade Analysis After just 10 years, 5% of the city’s total area—900 km² × 0.05 = 45 km²—will be submerged. This forces critical questions about displacement, economic impact, and adaptation.