Source: Scientific American Blog
A group of legislators from 20 coastal NC counties whose economies will be most affected by rising seas have legislated on how future predictions should be calculated. In House Bill 819 2011 section 2, paragraph e, talking about rates of sea level rise: “These rates shall only be determined using historical data, and these data shall be limited to the time period following the year 1900. Rates of seas-level rise may be extrapolated linearly. …”
By doing this they are ignoring the feedback loops predicted in climate science and bringing down the predicted sea level rise from a meter to 8 inches by the end of the century.