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No, I’m not. The NOAA site does not posit that the underlying trend is linear over the period - it simply displays a linear fit on the graphs. See here for more details https://tamino.wordpress.com/2018/04/16/recent-sea-level-cha...

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> The long-term linear trend is also shown, including its 95% confidence interval.

I hope you'll forgive the reader for interpreting this as them positing that the trend is linear.

They’re forgiven - but if you’re saying NOAA are saying the trend is linear and will continue to be you’re wrong. All the site is saying is it displays the “average” trend over the period as a straight line. It’s a comment on how the data is presented, not on the underlying dynamics.

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