So you think Arrhenius was wrong?
Among majority of Catholic priests is the infallibility of the pope agreed upon?
In any crowd of true believers you will get a disproportionate majority opinion on any subject.
Temperature is not speed.
Are the bears getting heart burn? 
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I know that no one has ever been able to demonstrate experimentally that such minute increases in any trace gas can have any significant effect on our environment much less account for all of the other factors influencing it.
Talking about the change…the speed of the change.
“Rate” is the word you are struggling for.
Sea levels can indeed be difficult to tell and must be done carefully and I don’t think that’s been much of an issue since satellites. I’m much less worried about regional often man made issues than a rise in the entire ocean.
No, but we are seeing little jingle bells in our poop. 
Rate of changed and speed are synonymous.
That is the rate of change. Speed is distance over time. That may seem a trivial distinction to you, but in science, units are very important. The proper unit (if you wish to be understood) is rate of change, not velocity.
Taken in context is just fine unless you’re trying to not pick.
Sounds to me more like he is trying to be educational.
Reliable accurate sea level data only goes back to1880 (to a single location in Tasmania and a small handful of other coastal areas, mostly only since the 1940s. WWII gave geoscience a huge boost.) Indeed, the satellite data since 1993 is far more reliable and has been correlated to tide gauge data, taking much of the uncertainty out of the previous data. According to NASA, the current rate of rise is 3.2 mm/yr. (0.13 in.)
Your greater concern for the global rise must mean you don’t live in one of those subsiding areas. 
No … they are not.
Yes, but to no avail.
You seem to think speed is only a measure of movement in space which isn’t the case.
The word in contention is velocity, not speed.
Speed of light… Speed of sound?
Velocity is rate of change with a direction. In his case the direction is up. Not an issue.
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