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Thanks for the link taskmaster. Interesting reading. Nice photos and time-lapse too.
Tone, hope you're right that's roughly the ipcc timeline 2040. Can't find the paper I read it from atm may have been Cambridge I think.
But also just based on my own intuition, nieve observations that have sady performed better over the last 20 years than all the equivelent cynical ones.
I think 2040 will be revised down give or take since artic switched from net cabon sink to net carbon source, the effect of feedback loops, tipping points the acceleration caused by methane bursts from artic warming then thermal runaway.
Written all over the jet stream, over europe today its off the hook.
If Im wrong and still here in 2025 I'll buy you a drink with ice.
https://www.cam.ac.uk/stories/greenlandicesheet
Ok, I think I've worked out where this 2025 date came from. And it definitely does not mean the ice sheet will disappear by 2025.
https://www.climatecentral.org/news/widespread-melting-in-greenland-a-sign-of-things-to-come-16018
https://thinkprogress.org/widespread-greenland-melting-to-become-the-norm-in-next-two-decades-8794672fb7bc/
In layman's terms it mentions 97% of the 'surface' of the ice sheet showing signs of melting which was considered an unusual event. They witnessed it happen again and project that by 2025 we could expect it to be an annual occurrence. It does not mean that 97% of the ice will have gone. It will take many years to melt the ice. It certainly points to evidence of warming and eventual sea level rise, but a severe level of sea rise from the Greenland ice sheet will absolutely not be 2025.
As the ice melts , more water vapour will be released into the atmosphere and given it is a more powerful greenhouse gas than co2, surely there will be a multiplying effect? anyone model h20?
Agh! be glad we have lies, dam lies and then we have statistics!!! And everyone believes statistics of couse because they are on the internet!!!
GLA
taskmaster, I'm intrigued as to where the 2025 figure on the ice sheet comes from. Back of the envelope calculations suggest it would take 46 years to melt the whole thing even assuming more powerful sunlight energy than they currently get, no refreezing ever, and no additional precipitation ever. Accepting periods of refreezing probably occur plus the odd snowfall it's hard to see how my figures are so far out that you could get to complete depletion of the Greenland ice sheet by 2025. Of course my figures could be wrong (including my assumption of average annual temperature not rising above 1C) so would appreciate any pointers you can give to the 2025 prediction.
Maybe we can run the "City" from laptops in the peakdistrict :-)
Seaangler, yes its scary the number , if weve got 350 billion tonnes in the system and the Hambach mine is just 1.3 billion tonnes of lignite... even in a purer form theres a slight storage problem.
http://www.ulrich.perwass.de/galerie19/gal1909/PanoHambachAbraum/index.html
Have thought for some time this is all too little too late TM. If the 2025 estimate is anything like I’m surprised we’re not seeing more evidence now though? Scary stuff whatever.
All good.... was a big unit in that train so no doubt will be higher pressure tanks in the final analysis.
Net zero if fine..... but seems to me unless the 350 billion tonnes of carbon emitted to atmosphere as (CO2) Since the industrial revolution is dealt with then its looking pretty bad...........Estimates now say the Greenland ice sheet will be gone by 2025 ~ that means sea level rise of 5m maybe 7m.. many low cities like New Orleans a goner
The DT has been publishing this c@@p for years. Lack of education in science of the wealthy in the UK has been a major cause of UK decline since WW1.
Some of these Telegraph critics may have vested interests......
Wow, worth visiting the telegraph article just to read the comments section alone. It's absolutely jam packed with haters and nay-sayers, all very misinformed about hydrogen, energy, physics, and current developments in the whole sector. Here's a small taster...
"The law of thermodynamics means you will have to use more power to produce the equivalent energy in hydrogen and costs considerably more and is far less energy dense than the hydrocarbons needed to produce it. What on earth is the point?"
"What he fails to point out is that producing hydrogen from water is incredibly energy inefficient. Don't know how you get round that one."
"Anyone remember the Hindenburg?
Hydrogen liquefies at just 20 degrees above Absolute Zero.
So it has to be stored as a gas unless every car has superconducting magnetic refrigerators - which would at least triple the weight of any car."
"The problem is it has only a fraction of the power of petrochemicals and can't be stored in adequate quantities, say for your car.
The solution is to ditch the climate myth and get back to clean diesel."
"How many birds have been exterminated by very expensive, ineffective wind farms installed because of the fascist green lobby?"
"Suggest Grant is granted! the promised 4 year educational grant! to finish his scientific education--because he will then tell us how all this hydrogen is going to sourced"
That's enough of that. Many strong-willed individuals but clearly not been reading all the way to the end of the science papers. Half-truths, out-of-context facts, and some plain old-wives tales thrown in. You know what they say "just enough knowledge to be dangerous".
https://www.telegraph.co.uk/politics/2020/09/30/hydrogen-driving-force-behind-uks-green-revolution/