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This sea level rise calculator estimates ocean altitude increase by 2100 using an average rate of 8mm/year. Based on IPCC projections, the expected range is 0.3m to 1.1m, depending on factors like CO2 emissions and glacier melting. It's useful for coastal city planning, environmental risk management, and climate adaptation policies.

The calculation uses a linear formula: total rise = annual rate × years. For example, 8mm/year over 80 years equals 64cm. The 0.3m-1.1m range reflects different climate scenarios and processes like thermal water expansion and ice mass imbalance. Regional data is recommended for local accuracy.

Remember that global projections exclude extreme climate events or abrupt Antarctic ice loss changes. This tool provides general guidance, but specific studies should include factors like land subsidence, ocean currents, and seasonal variations. Periodic model updates are needed as new data becomes available.