How much will sea level rise by 2100?

IPCC AR6: 0.3–1.0 m by 2100 depending on emissions; up to 2 m possible with rapid ice-sheet loss.

Climate 8 min read October 20, 2025

Sea Level Rise: What 30 cm of Ocean Actually Means for Coastal Homes

Global sea level rose 21 cm since 1900 and is accelerating. Here's how to translate global projections into your coastal risk.

Local sea level rise can be 2–3× the global average due to land subsidence (Louisiana, Jakarta) or gravitational effects (US East Coast).

Miami and Norfolk already see 'sunny-day' flooding on king tides. By 2050, +30 cm doubles or triples flood days for most US East Coast cities.

How much will sea level rise by 2100?: IPCC AR6: 0.3–1.0 m by 2100 depending on emissions; up to 2 m possible with rapid ice-sheet loss.

sea level rise climate coastal flooding