Regional mean sea-level trends 1993–2019

Regional mean sea-level trends between January 1993 and October 2019.

The red shows where sea level has risen and the blue where sea level has fallen. There are a number of reasons for these regional variations, such as different temperatures of the seawater, ocean currents, changes to average winds and atmospheric pressures, gravitational adjustments owing to the loss of ice, and changes to the amount of water on land. Regional differences in sea-level rise clearly put some places at risk more than others.