The question of sea level rise: It has been constant for centuries — and remains so today.

American Thinker ^ | 02/11/2019 | S. Fred Singer

[SeekAndFind]

Sea level has risen about 400 feet since the last glacial maximum of ~18,000 years ago (see fig. below).

Currently, sea level is rising at the rate of 1-2mm per year — and has been rising at that rate for the past several centuries.

At that rate, S.L. will be about six inches higher by 2100 — a long way from Al Gore's 2006 estimate of a 20-foot rise.

By choosing a short interval, 1910–1942, of certified warming, I can show the lack of any acceleration (see below).  SLR does not depend on ocean temperature — or CO2.

Every one of the individual records of SLR shows this constancy of SLR.

But water expands when heated, so why doesn't SLR accelerate as temperature rises?  I assume that evaporation of sea water offsets the expansion, with increased humidity and precipitation.  I fully expect to see more ice deposited on the Antarctic continent — probably too hard to measure accurately.

But the long-term rise in global S.L. is caused by the average, slow melting of glaciers and ice sheets around the world, which adds water to the ocean.  (See fig. of Sea Level versus Time.  Note also that the melting of floating [polar] ice doesn't add water to the ocean and therefore does not affect sea level.)

I published this research in the WSJ of May 16, 2018.  I fully expect that the IPCC will reflect my thinking after an appropriate delay.  IPCC estimates are decreasing in successive reports.  So the IPCC seems to be moving in that direction, as explained, in "Nature Rules the Climate," comparing successive Assessment Reports. 

[butlerweave]

If your ocean is raising Gilligan is moving the marker again

[pepsionice]

Around ten years ago, some European university did a study and found that even if sea levels rose 12 inches...it doesn’t mean in one single spot that it’d be twelve inches. It could be four inches in some areas....15 inches in other areas. This simplification method apparently doesn’t take into account various factors.

[Moonman62]

Good post!

About the author:

S. Fred Singer is professor emeritus at the University of Virginia and director of the Science & Environmental Policy Project. His specialty is atmospheric and space physics. An expert in remote sensing and satellites, he served as the founding director of the U.S. Weather Satellite Service and, more recently, as vice chair of the U.S. National Advisory Committee on Oceans & Atmosphere. He is a senior fellow of the Heartland Institute and the Independent Institute. He co-authored the N.Y. Times bestseller Unstoppable Global Warming: Every 1500 years. He published “push-pull” tidal theory in the Geophysical Journal of the Royal Astronomical Society and is a fellow of the RAS. For recent writings, see www.americanthinker.com/s_fred_singer/ and also Google Scholar.

[rktman]

Tides come and tides go. So, what about the Aleutians land bridge (think "native" Americans and central/South American tribes)and being able to walk from France to Britain? Oh. BEFORE "recorded" history so it doesn't count. 🙀👹

[Olog-hai]

Currently, sea level is rising at the rate of 1-2 mm per year — and has been rising at that rate for the past several centuries …

How can they tell when the millimeter has been around for just over two centuries?

[Paladin2]

Falling Sea Levels would be a hit to commerce.

Big time resorts can have their beaches replenished.

[NativeSon]

Well played.

[NativeSon]

Doggerland.

[outofsalt]

This is a NOAA webpage which has looked at increments of 50 year sea level trends at many sites across the US. (and worldwide sites if you click around a little)
https://tidesandcurrents.noaa.gov/sltrends/sltrends_station.shtml?stnid=8723170
Click on the tab that says, “Variation of 50-Year Relative Sea Level Trends” you can look at different gauges around the country for different 50 year averages.
In most cases the 50 year intervals show declining rates of sea levels on the order of 3-5 millimeters which then level back towards the baseline. That’s millimeters over 5 decades! It’s all BS!

[karnage]

The author is showing his white privilege. The world will end by 2030!

[Sequoyah101]

Could it be that the erf is just sinking where they do the measuring? Hmmmm?

[Tucker39]

In all this calculation of supposed sea level rise, how much attention has been paid to sinking shorelines? The scientific term escapes me. There was a big article about it here on FR within the last couple of weeks.

[GOPJ]

Currently, sea level is rising at the rate of 1-2mm per year — and has been rising at that rate for the past several centuries.

Billionaires are still buying mansions on Sea Shores... if they're not worried, I'm not worried.

[ClearBlueSky]

Ask anyone who attempts to blame modern civilization for sea rise to explain how/why the most valuable thing in ancient times was SALT. People were paid in salt, you were 'worth your salt'? Because the falling seas revealed great salt flats and rising seas covered them again making salt a precious commodity. Nothing primitive man did caused any of it. Nature is cyclical. The Dead Sea once held water. Huge portions of coastlines have disappeared under water. Florida was bigger. Islands rose up from the oceans and were submerged again.
Why the attempt to make civilized, progressive man guilty for climate change except to force humanity to Regress? Now ask what culture benefits?

[I want the USA back]

If the oceans rose, or the land subsided, how would we be able to tell the difference?

[EQAndyBuzz]

“How can they tell when the millimeter has been around for just over two centuries? “

They check the line that was drawn in the sand 200 years ago. I believe the line is in Huntington Beach.

[JoeFromSidney]

A minor correction. Melting of floating ice does add water to the sea. However, it doesn't raise the sea level because the ice is already displacing its own weight of water.

[aquila48]

Bookmark

[tet68]

Look look, the sun is going down!
No, no my boy the horizon is going up!
I’ve got an idea let’s stand him on his head.
Now it’s MORNING!

The continents could also be sinking etc.