Environment Counts | IPCC 5th Assessment Report: Rate of sea level rise is likely increasing :
It is very likely that the mean rate of global averaged sea level rise was
| Period | Sea level rise | Error bars |
| 1901 and 2010 | 1.7 mm/yr | 1.5 to 1.9 |
| 1971 and 2010 | 2.0 mm/yr | 1.7 to 2.3 |
| 1993 and 2010 | 3.2 mm/yr | 2.8 to 3.6 |
The rate of sea level rise since the mid-19th century has been larger than the mean rate during the previous two millennia (high confidence). It is likely that the rate of global mean sea level rise has continued to increase since the early 20th century.
Over the period 1993–2010, global mean sea level rise is, with high confidence, consistent with the sum of the contributions.
| Cause | Contribution | Error bars |
| Ocean thermal expansion | 1.1 mm/yr | 0.8 to 1.4 |
| Glaciers | 0.76 mm/yr | 0.39 to 1.13 |
| Greenland ice sheet | 0.33 mm/yr | 0.25 to 0.41 |
| Antarctic ice sheet | 0.27 mm/yr | 0.16 to 0.38 |
| Land water | 0.38 mm/yr | 0.26 to 0.49 |
| Sum | 2.8 | 2.3 to 3.4 |
Since the early 1970s, glacier mass loss and ocean thermal expansion from warming together explain about 75% of the observed global mean sea level rise (high confidence).
