Title: Sea level rise - Wikipedia
Headings: Sea level rise
Sea level rise
Contents
Past changes
Measurement
Satellites
Tide gauges
Contributions
Ocean heating
Main article: Ocean heat content
Antarctica
East Antarctica
West Antarctica
Greenland
Glaciers
Main article: Retreat of glaciers since 1850
Sea ice
Land water storage
Projections
Projections for the 21st century
Long-term sea level rise
Further information: Long-term effects of global warming
By region
Effects
Further information: Regional effects of global warming
Coastal areas
Present effects
Future effects
Island nations
Ecosystems
Adaptation
See also
Notes
References
Further reading
External links

Content: Blue regions are where sea level has gone down, and orange/red regions are where sea level has gone up. Between 1992 and 2019, seas around the world have risen an average of nearly 6 inches. Tide gauge measurements show that global sea level rise began around the start of the 20th century. Between 1900 and 2016, the globally averaged sea level rose by 16–21 cm (6.3–8.3 in). More precise data gathered from satellite radar measurements reveal an accelerating rise of 7.5 cm (3.0 in) from 1993 to 2017, which is a trend of roughly 30 cm (12 in) per century. This acceleration is due mostly to human-caused global warming, which is driving thermal expansion of seawater and the melting of land-based ice sheets and glaciers. Between 1993 and 2018, thermal expansion of the oceans contributed 42% to sea level rise; the melting of temperate glaciers, 21%; Greenland, 15%; and Antarctica, 8%.