«Recently, various attempts using semi-empirical models have been proposed to estimate
globally averaged sea level rise for the 21st century.
As it turns out, estimates of
globally averaged sea level rise in the 20th century are irrelevant since Tuvalu's local sea level change is very different from the globally averaged change.
Not exact matches
Sea levels are
rising globally by 3 millimetres on
average.
Globally,
sea levels rose an
average of 1.7 millimetres per year between 1901 and 2010.
«
Globally averaged sea -
level rise anomaly (relative to 1986 — 2005) owing to thermal expansion (red line, as in Fig. 2), and the example from the IPCC AR4 (dashed green line) for RCP8.5 (a), RCP4.5 (b) and RCP2.6 (c).
Since 1850, CO2
levels rose, as did the «
globally and annually
averaged land and
sea surface temperature anomaly» (for what it's worth), but nobody knows whether or not the increase in CO2 had anything whatsoever to do with the warming.
Projected
globally averaged sea -
level rise at the end of the 21st century (2090 to 2099), relative to 1980 to 1999 for the six SRES scenarios, ranges from 0.19 to 0.58 m (Meehl et al., 2007).
The Thwaites Glacier alone is contributing about 10 % to the current
globally averaged rate of
sea level rise, which is about 0.13 inches per year, Joughin says.
Some locations, such as Brest, have measured a very slight acceleration in
sea -
level rise in the late 1800s or early 1900s, but
globally averaged coastal
sea -
level rise has not accelerated since the 1920s.
It is virtually certain that
globally averaged sea level has
risen over the 20th century.