Reflections on Arctic Ice: Webinar with Dr. Peter Wadhams and Dr. Leslie Field

Spectacular webinar with climate change and arctic ice experts, Dr. Peter Wadhams and Dr. Leslie Field.

[rudlzavedno]

Dr. Peter Wadhams: "The human race is possibly terminally stupid." God, I love this man, always telling it as it is. Rare quality in this day and age.
We'd need to clone him a billion times and maybe something would finally change for the better.

[escapewithlordhughr.adumba]

"We have to give ourselves more time for decarbonization" is silly. That's like saying, "We have to extend closing time at the bar to allow the alcoholics more time to kick their addiction." It's fundamentally foolish to apply engineering fixes to psychological problems. Whatever the science says, the mere fact you are attempting these geo-hacks will inadvertently cause more harm in the long run because they ignore human psychology. Obviously we need to stop global industry, not give it excuses and band-aids and let it roll on. Engineers are the problem. They are not the solution. We are better off deliberately engineering a crisis rather than trying to prevent one.
But of course, no one is ever going to talk engineers out of engineering. So deeper and deeper into the hole we go. (Just remember, Glass Microspheres are made from a glass melt that emits 2 tons of CO2 for every ton of glass produced. Can we please just stop the insanity?)

[papel]

wonderful. thank you for making this public

[jazznroll]

Dr. Peter Wadhams was predicting in 2012 the "final collapse of sea ice within 4 years", according to a Guardian newspaper article. How come and that did not happen ?

[bazarov]

Thank you so much for this video. Concerning the question of why the rate of warming is higher at the poles than at lower latitudes, might the fact that the atmosphere is considerably thinner at the poles not have something to do with it (i.e. less energy required to heat a relatively smaller mass of air)? Furthermore, might the fact that the atmosphere is thinner not result, somehow, in a a relatively higher concentration or proportion of greenhouse gases? Additional factors that might explain a difference in warming rates between latitudes as well as between the northern and southern hemispheres: 1) The continental land masses are concentrated in the northern hemisphere and, as Dr. Wadhams pointed out, a large proportion of the existing sea areas in the Arctic consist of relatively shallow water (continental shelves). The sea/ocean is therefore less capable of acting as a heat sink in the Arctic than at lower latitudes, as well as being less efficient as a heat sink in the northern hemisphere than in the southern hemisphere; 2) Industrial activity and human population (and therefore CO2 generation) are also concentrated in the northern hemisphere); 3) Possibly, methane-rich hydrates are also concentrated in the northern hemisphere relative to the southern hemisphere (shallow seas as well as Siberian tundra, etc.)...

[duncanread]

Carbon emissions are going up faster than ever. Considering the lag between emissions and their effect....its fair to say were stuft.

[lacha]

Aren't some recent papers predicting an ice-free summer arctic within the next couple 9f years? Is there time to spend 5 years honing this project?

[EastWindCommunity]

Wonderful presentation, thank you! Let us hope more people can see it!!

[tommynickels]

July 6 2021 update: arctic sea ice is on pace for a top 3 finish in both volume and area. Has potential to break both records but too soon to tell. For area, top 3 years 2012, 2020 and likely 2021. For volume, 2019, 2020 and 2021. Once the ice goes, its game over.

[JugglinJellyTake]

An excellent discussion and good to hear about Leslie's and co's work on a potential solution.

[martiansoon]

It's pretty sad to realize that hardly anyone has heard of huge (1km diameter and smaller ones) methane plumes that are rising from seabed near Siberia. Not by few, but by thousands. And hearing that these have gone worse with flaking seabed means we are rapidly losing our control of climate warming. Single release of 50Gt of methane is bad, but if constant release continues for next 100 years with yearly increases with possibility of enormous single bursts, it mean even harder times for all.

[rmgwheelsspokeslab.]

Is there any project studying how to clean blackened ice? How deep the blackening caused by particles deposition can be? Wondering if it could be possible to remove somehow the stained superficial layer.

[valhala]

HBO did an Arctic climate change movie/documentry? wow kudos to that producer at HBO.

[MrDarkTides]

All evidence points towards a terminal decline for Arctic sea ice.

[grindupBaker]

I have a suggestion about one of the other possible causes than albedo of the "Arctic amplification" at 1:26:44 to 1:30:49 and that's Wonky Jet Stream. I'd assumed in 2018 that less warm air must go to Arctic from further south as it warms itself (less than the present ~48 w / m**2 warm air from further south in Spring, Summer and ~146 w / m**2 warm air from further south in Autumn, Winter (just from memory)) but the Coriolis Effect formula form is:
Acceleration [east <---> west] = f (velocity [north <---> south}, latitude)
so it's actually possible that MORE warm air from further south might go to the Arctic as it warms itself. That's a possible amplifier. Also, one of the cloud scientists was saying something about Arctic clouds and I think it might have been the Autumn, Winter clouds increase with warming but the Spring, Summer clouds don't change. If so then there's no change in clouds reflecting sunlight because there's ~no sunlight in Arctic Autumn, Winter but an increase in the Autumn, Winter clouds would increase their powerful "greenhouse effect" of course (all solids, all liquids and all infrared-active gases in the troposphere cause a "greenhouse effect" except when there's tropospheric thermal inversion).

[bazarov]

Further to my previous comment concerning the quicker rate of warming in the Arctic than at lower latitudes (see below), I think it would be great if you could address this issue in some future programme, including a discussion of various specific factors such as higher rate of ozone depletion at higher latitudes, net balance effect of a thinner atmosphere in the presence or absence of cloud cover, effect of greater atmospheric moisture content at higher latitudes (Greenland) in recent years, etc. Thank you again.

[oliviachipperfield]

This is super interesting. This work is amazing. Thank you! 💗

[reverands]

The spheres sound a lot like "Cabosil", which I used to thicken epoxy with. Is that what you used??

Pretty cheap by the big bags. I think I paid $105 for a 10 pound bag, which was bigger than a 90# bag of cement in volume.

[grindupBaker]

I don't see how there can possibly be any sea ice at all on the Arctic Ocean after 2016 CE. I'm with Dr. Peter Wadhams on that one. Good solid science.

[donready]

Note the next millennium part. That would be 3000 AD