Rapid growth of sea ice after slow start shows ocean heat cycle is already failing due to GW

[Anonymous]

Can any of the self-claimed” scientists” explain the part about sea levels falling in the polar regions as ice accumulates, while at the same time “local”(?) sea levels rising in the tropics. And water “piling up”?

Because I’ve always thought that sea level was universal around the planet. How can it become lower at the poles and higher at the equator? That sounds whack AF.

[Anonymous]

Someone in earth science can answer regarding your question about the association of sea ice and local sea level.

But, in answer to your statement about sea level being the same across the planet -- well, it's definitely not. Sea level is not the same everywhere:

https://oceanservice.noaa.gov/facts/globalsl.html

[Anonymous]

Anonymous wrote:Someone in earth science can answer regarding your question about the association of sea ice and local sea level.

But, in answer to your statement about sea level being the same across the planet -- well, it's definitely not. Sea level is not the same everywhere:

https://oceanservice.noaa.gov/facts/globalsl.html

The differences shown in that map graphic are in millimeters. Millimeters.

OP said sea levels would fall enough to stop shipping and shift coastlines away from ports or rise enough to submerge coastal cities. 10 millimeters- not even half an inch - is not going to do that.

[Anonymous]

Anonymous wrote:

Anonymous wrote:How could someone apparently so well-versed in the science somehow be so dumb about politics? Hint: it’s not like Democrats solved or would solve global warming either.

Climate change is a disaster brought upon us exclusively by republicans and every credible scientist agrees.

You do realize this is a GLOBAL problem?!? One can credibly theorize it's due to the rapidly elevated standard of living in China, India, and Brazil - very populous countries with huge energy needs. I'm not sure the Republicans in the US have control over that. Are you really so narrowly focused that you cannot see this?

[Anonymous]

Anonymous wrote:I was a zoology major for a few years decades ago so have a better grasp of the global warming science than many people do - I studied ecology with a now dead professor who has a mountain in Antarctica named after him, he was warning us about Hansen’s predictions then and of course things have only unfolded worse than Hansen predicted.

It gives me great peace that I had no children.

As a child I was a fan of the New England poet Robert Frost and these days I wonder which will be worse, to die in fire or in ice?

I'll take tornado or earthquake, please. Maybe even being eaten by a polar bear in the tropics.

[Anonymous]

Anonymous wrote:Can any of the self-claimed” scientists” explain the part about sea levels falling in the polar regions as ice accumulates, while at the same time “local”(?) sea levels rising in the tropics. And water “piling up”?

Because I’ve always thought that sea level was universal around the planet. How can it become lower at the poles and higher at the equator? That sounds whack AF.

I studied geodesy while getting my PhD. Basically water puts pressure in the Earth. The Earth is an oblate spheriod (like a squahed ball), so gravity varies slightly depending on where you are. As the distribution of water changes, the pressures around the earth change and so do the relative sea levels to land. Ice has a different density than water, so the more ice accumulated in the Poles, the different 'weight' or pressures around the center of the Earth. That's how I described it to my 7 year old and she understood, so I hope that helps. I drew pictures for her which I can't do here.

[Anonymous]

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:How could someone apparently so well-versed in the science somehow be so dumb about politics? Hint: it’s not like Democrats solved or would solve global warming either.

Climate change is a disaster brought upon us exclusively by republicans and every credible scientist agrees.

You do realize this is a GLOBAL problem?!? One can credibly theorize it's due to the rapidly elevated standard of living in China, India, and Brazil - very populous countries with huge energy needs. I'm not sure the Republicans in the US have control over that. Are you really so narrowly focused that you cannot see this?

The cumulative emissions of those countries pale in comparison to those of the US. Their rapid growth in the last few years means they are now an ongoing part of the problem, but our current situation is because of years and years of past emissions that were dominated by the US.

[Anonymous]

Anonymous wrote:

Anonymous wrote:Can any of the self-claimed” scientists” explain the part about sea levels falling in the polar regions as ice accumulates, while at the same time “local”(?) sea levels rising in the tropics. And water “piling up”?

Because I’ve always thought that sea level was universal around the planet. How can it become lower at the poles and higher at the equator? That sounds whack AF.

I studied geodesy while getting my PhD. Basically water puts pressure in the Earth. The Earth is an oblate spheriod (like a squahed ball), so gravity varies slightly depending on where you are. As the distribution of water changes, the pressures around the earth change and so do the relative sea levels to land. Ice has a different density than water, so the more ice accumulated in the Poles, the different 'weight' or pressures around the center of the Earth. That's how I described it to my 7 year old and she understood, so I hope that helps. I drew pictures for her which I can't do here.

The variation in gravity due to the shape of the Earth is practically negligible. While ice accumulations results in falling sea levels, the most recent increase in ice coverage hasn't reversed the massive losses over the past decades. Further complicating measurements is the sinking of cities and coasts into the crust due to weight and aquifer depletion.

[Anonymous]

A recent study supports the OP, which may be why she posted. It is helpful to read her post in view of the study:

https://www.theguardian.com/environment/2024/feb/09/atlantic-ocean-circulation-nearing-devastating-tipping-point-study-finds