There is some difficulty measuring ocean levels, but the temperature levels are unambiguously ambiguous, yielding no firm conclusion as to whether things are getting hotter, colder, or staying the same. From Dom Armentano at lewrockwell.com:
There are two widely held climate-change beliefs that are simply not accurate. The first is that there has been a statistically significant warming trend in the U.S. over the last 20 years. The second is that average ocean levels are rising alarmingly due to man-made global warming. Neither of these perspectives is true; yet both remain important, nonetheless, since both are loaded with very expensive public policy implications.
To refute the first view, we turn to data generated by the National Oceanic and Atmospheric Administration (NOAA) for the relevant years under discussion. The table below reports the average mean temperature in the continental U.S. for the years 1998 through 2019*:
1998 54.6 degrees
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