Are the models wrongly expecting sea level rise to closely mirror the rate of increase in atmospheric CO2 content, in all regions? It seems it doesn’t work like that. The study itself says: ‘As for simulation of the interannual variance, good agreement can be seen across different models, yet the models present a relatively low agreement with observations. The simulations show much weaker variance than observed’.
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According to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, the global mean sea level has risen faster since 1900 than over any preceding century in the last 3000 years, says Eurekalert.
This makes hundreds of coastal cities and millions of people vulnerable to a threat of higher water levels.
State-of-the-art climate models provide a crucial means to study how much and how soon sea levels will rise.
However, to what extent these models are able to represent sea level variations remains an open issue.