Explore Sea Level Change in the Coastal U.S.

About the Data

The sea level scenarios and the associated supporting information come from the 2022 Interagency Sea Level Rise Technical Report titled "Global and Regional Sea Level Rise Scenarios for the United States: Updated Mean Projections and Extreme Water Level Probabilities Along U.S. Coastlines". This report is an update from a 2017 report by the same group– the Interagency Task Force on Sea Level Change. The previous 2017 report attempted to estimate the full, plausible range for global mean sea level rise by 2100. The 2017 report found a range of sea level rise projections for the year 2100 of 0.3 m (Low) to 2.5 m (Extreme) above 2000 levels, with the extreme scenario representing an extreme ice sheet melt/discharge scenario.

The updated 2022 report utilized the findings from the 2017 report as its starting point, and updated the Global Mean Sea Level scenarios and the associated projections to reflect recent advances in sea level rise science, as well as expanding the types of scenario information provided to better serve stakeholder needs for coastal risk management and adaptation planning. As with the 2017 report, this report served as a key technical input to the National Climate Assessments, in this case, the Fifth National Climate Assessment.