GL, a most excellent post! Well explained and with some
acknowledgment that some things are not well known.

https://www.cbsnews.com/news/study-north-pole-once-was-tropical/

Twice as much CO2 as today, with an evil FF industry.

https://phys.org/news/2012-08-tropical-climate-antarctic-palm-trees.html

Bernard J, the facts do not bear out your
nor GL, the author, that this “claim” has any
realty in substance.

Once again, the AGW “community” undermines its
so called expertise and knowledge.

Your Bloomburg is self inflicted.

Glaciers sit there and grow continuously, as new precip falls on them.

Glaciers site there and shrink continuously, as warm air or water melts them a little.

(Sometimes the growth or shrinkage is zero, for a period of time)

When we add growth and shrinkage together, we get “mass balance.” When mass balance is negative, that fresh water that is in the glaciers is being converted at a certain rate into, ultimately, ocean water.

For a very long time, the mass balance of the major glaciers of the world was at close to equilibrium. The sea level was therefore not going up or down much. Most of the up and down flux of sea level was probably other causes. For example, if Australia gets copious rain over a period of a couple of years, the sea level goes down.

But for the last century or so, the mass balance across the world’s glaciers has been negative, and sea level has been going up.

Regarding the claimed lack of connection between the upper video (note I added a second video) and hurricanes, please just watch the video and note all the parts where they make that connection.

Please note that there are several different tropical cyclone basins. The research that suggested a decrease in frequency of TC’s pertained only to the oddest (or second oddest) of the basins: The Atlantic.

Notice that there is at lease one independent TC basin that only recently started producing TCs. Maybe two.

Regarding the damn dams. The process of a glacier of the type we see in Antarctica losing its grounding line is complex and not well understood. Yes, the mass of glacier in the valley helps slow the glacier’s move through the valley. Also, if there is a large mass behind the upper parts of that ice stream and the lower part is lose and moving ,that can speed up the movement of the glacier. Also, as the main river of ice held in the valley slides out of position, it exposes the sides of the valley and a huge amount of calving can happen.

The process is known to have happened many times in the past, but the observation of this kind of thing is mainly, as far as I know, on smaller glaciers that are not grounded the same way.

See here and search down to the word “swan”: https://gregladen.com/blog/2015/11/18/new-antarctic-glacial-melt-study-lowballs-rate-estimate/

The conditions that rip apart tropical cyclones when they are first forming would increase at the same time the conditions that make strong hurricanes that get past that initial formation stronger increase.

This only applies to the N. Atlantic.

This is a pretty good study, but has not been backed up by a lot of other work.

So far, we are actually getting both more (a little) and stronger.

Where are all of the AGW experts???? This is a basic question for
enviro scientists. Where is Harvey and BBD???

Thank you.

And yes, Easterbrook – a much-debunked denier of the always-wrong school – has a fucking nerve trying to pretend Rignot lacks domain expertise. In fact by doing so, Easterbrook reveals just how dishonest he really is.

Perhaps the damming idea is applicable to some and not others.

Yup, the damming of WAIS outflow glaciers by embayed ice shelves don’t happen on mountain glaciers 🙂

I the embayed ice shelves damming the likes of the PIG etc are mainly freshwater ice from the glacier, but the composition of the ice doesn’t affect the way that the ice shelf inhibits the flow rate of the glacier itself.

Thanks Tyvor.
I’m getting the idea that each glacier is unique. And each one sort of needs a school of knowledge around it.
Perhaps the damming idea is applicable to some and not others.
Here’s Rignots Wikipedia page so you can see what sort of electrical work he does. He’s not designing switch boards in factories as a day job and has a hobby at night looking at glaciers.
It really was a crappy slight Easterbrook gave him.
Thanks again for the glacier basics.

https://en.m.wikipedia.org/wiki/Eric_Rignot