Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without tou

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

David_N said:

Climate deniers are on par with those who deny evolution. Safe to laugh at them.

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Pardon me but I find statements like this laughable..

The good news, said the scientists, is that their research suggests it's not too late to stop this, if we're prepared to take tough action to reduce greenhouse emissions.

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This whole issue has just become way too politicized and for that I put the blame SQUARELY at the feet of climate change extremists for the simple reason that they presented the "solution" before the "problem" could even be established.

Look, evidence does point to the fact that the Earth's climate seems to be warming but that evidence in no way proves that relatively minuscule cuts(on a global scale) in greenhouse gas emissions are going to magically reverse this trend. Belief in man's ability to master mother nature is increadibly arrogant, IMHO, and it is the eagerness and the outright INSISTENCE that we all should jump on board with these "solutions", disregarding the very real economic hardships they will cause to millions upon millions of people, that is the real danger facing us.

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

David_N said:

Climate deniers are on par with those who deny evolution. Safe to laugh at them.

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Well those who are equally deserving of laughter are the doomsayers that ignore world history that states...climate change happens.

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

stonewall50 said:

Well those who are equally deserving of laughter are the doomsayers that ignore world history that states...climate change happens.

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The funny thing is that if anyone in the discussion are "flat earthers" it is the people who claimed that the arctic would be free of ice this year, or that Himalayan glaciers would be gone, or that polar bears are on the brink of extinction.. and many thousands of other alarmist warnings from years ago that never came to be. But these are the same people that alarmists look to for their talking points today.

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

David_N said:

Someone who denies the reality that is AGW.
Plenty of people who deny evolution are asking questions and they're laughed out of the room. :shrug:

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You are comparing an actual scientific discipline to a political contrivance.

The name of the sham, Anthropogenic Global Warming, should be a dead give away to even the most indoctrinated.

There is, in broad terms, a warming trend in progress right now. This warming trend seems to have been ongoing since the preceding the 300 year cooling trend ended. That ending was in about 1600. Whatever it was that caused the cooling to begin and endure for 3 centuries must have had a cause. Can we agree that it might have been Anthropogenic and might not have been Anthropogenic? Are you of the school that ALL changes in nature are caused by man?

One version of the climate record based on the Greenland Ice sheet:

climate4you welcome
<snip>

Fig.3. The upper panel shows the air temperature at the summit of the Greenland Ice Sheet, reconstructed by Alley (2000) from GISP2 ice core data. The time scale shows years before modern time. The rapid temperature rise to the left indicate the final part of the even more pronounced temperature increase following the last ice age. The temperature scale at the right hand side of the upper panel suggests a very approximate comparison with the global average temperature (see comment below). The GISP2 record ends around 1854, and the two graphs therefore ends here. There has since been an temperature increase to about the same level as during the Medieval Warm Period and to about 395 ppm for CO[SUB]2[/SUB]. The small reddish bar in the lower right indicate the extension of the longest global temperature record (since 1850), based on meteorological observations (HadCRUT3). The lower panel shows the past atmospheric CO[SUB]2[/SUB] content, as found from the EPICA Dome C Ice Core in the Antarctic (Monnin et al. 2004). The Dome C atmospheric CO[SUB]2[/SUB] record ends in the year 1777.
<snip>

Some other proxies:



We are cooler than the warmest point of this interglacial.

We are cooler than the warmest point of any preceding interglacial. We are at a very cool point in our climate history over the last 65 million years.



Almost all of the warming we have experienced since 1600 is more like a recovery to the climate before the cooling than just unnatural warming from an stable and idyllic past.

The past has been defined by climate CHANGE and not by stability. What makes you think this current climate, really in the Goldilocks zone as defined by the temperatures in this or any other interglacial, is dangerous, threatening or even unusual?

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Antarctic / Sea ice
[h=1]2015 Antarctic Maximum Sea Ice Extent Breaks Streak of Record Highs[/h] From NASA Goddard: The sea ice cover of the Southern Ocean reached its yearly maximum extent on Oct. 6. At 7.27 million square miles (18.83 million square kilometers), the new maximum extent falls roughly in the middle of the record of Antarctic maximum extents compiled during the 37 years of satellite measurements – this year’s…

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Jack Hays said:

Antarctic / Sea ice
[h=1]2015 Antarctic Maximum Sea Ice Extent Breaks Streak of Record Highs[/h] From NASA Goddard: The sea ice cover of the Southern Ocean reached its yearly maximum extent on Oct. 6. At 7.27 million square miles (18.83 million square kilometers), the new maximum extent falls roughly in the middle of the record of Antarctic maximum extents compiled during the 37 years of satellite measurements – this year’s…

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Introducing facts into the argument is always a frustration for the proponents of the Alarmist Dogma.

You should be ashamed!

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Anomalism said:

Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without tough climate action, say scientists - Science - ABC News (Australian Broadcasting Corporation)

Warming of 1.5 to 2 degrees Celsius above current levels could lead to "unstoppable" sea level rise that would last for thousands of years, according to a new model of Antarctic ice sheets. The new model, published today in Nature, shows that such temperatures would result in 80 to 85 per cent loss of major Antarctic ice shelves, something that is possible by the end of the century under existing IPCC scenarios. Collapse of the ice shelves would trigger a rapid melt of the Antarctic ice sheets, releasing vast amounts of Earth's freshwater stores into the ocean, said the researchers.

By 2100 this would add up to 40 centimetres to sea levels, melt rate would continue to accelerate until 2300, and sea levels would continue to rise after that for thousands of years. The good news, said the scientists, is that their research suggests it's not too late to stop this, if we're prepared to take tough action to reduce greenhouse emissions. "A lot of people are out there saying there's no point -- we're in that world now where it's all going to happen," said researcher Dr Chris Fogwill of the Climate Change Research Centre at the University of New South Wales. "But actually, what this modelling shows is there is still an opportunity, even now, to keep below these thresholds, where we avoid that long-term commitment."

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Wow...

The author of that lies about what the research letter says, but you religious followers of the AGW dogma never question such pundits. The wording implies what the paper doesn't say. They also examine the RCP 2.6, 4.5, and 6 levels. We have been no where near following the 8.5 scenario.

The research letter says:


Yep.

Papers like this still use broken models, so the pundits can spin, and the research money keeps flowing.

The letter has the more realistic 2.6 or 4.5 model showing a rise at 0.01 to 0.10 and 0.01 to 0.19 meters.

LOL... we already have a natural sea rise of about 0.15 meters per century.

I will read more of this letter later, but it seems pointless.

Wow...

Nature 15 Oct 15, volume 526, pages 421 to 425.

When looking at the methods addition, it's a total of 18 pages.

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Ancient Herald said:

The key words are very likely.

okay, this is one time I will side with the deniers and call this just alarmist politics.

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It is.

I doubt you have access to this paywalled article, but the pundits spin this one real good!

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

David_N said:

Someone who denies the reality that is AGW.
Plenty of people who deny evolution are asking questions and they're laughed out of the room. :shrug:

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Those denying the reality of AGW are those who exaggerate it.

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

I think you all can see this image from the paper, but it might be paywalled too:

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Nature Geoscience has a similar article:

http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo2563.html

It however uses the RCP 4.5 and 8.5 scenarios rather than all four.

Sometimes these letters are not paywalled. The research papers almost always are, but the letters are a crap shoot. Will someone tell me if this one is please? I'm not going to log out and in to find out.

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

If I were to spun science like the pundits spin AGW, I could say the ocean is responsible for CO2 rises we see in the atmosphere, and use this letter as proof:

http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo2538.html

I, however, don't spin the facts.

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

It is pay walled, but the abstract and some of the images are not.

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Antarctic / Climate Models / Sea level
[h=1]Missing factors in climate models suggest Antarctic melt may not be so bad after all[/h] From MCGILL UNIVERSITY Geophysics could slow Antarctic ice retreat Gravitational effects, variations in Earth structure could damp rise in global sea levels The anticipated melting of the massive West Antarctic Ice Sheet could be slowed by two big factors that are largely overlooked in current computer models, according to a new study. The findings, published online…

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Anomalism said:

Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without tough climate action, say scientists - Science - ABC News (Australian Broadcasting Corporation)

Warming of 1.5 to 2 degrees Celsius above current levels could lead to "unstoppable" sea level rise that would last for thousands of years, according to a new model of Antarctic ice sheets. The new model, published today in Nature, shows that such temperatures would result in 80 to 85 per cent loss of major Antarctic ice shelves, something that is possible by the end of the century under existing IPCC scenarios. Collapse of the ice shelves would trigger a rapid melt of the Antarctic ice sheets, releasing vast amounts of Earth's freshwater stores into the ocean, said the researchers.

By 2100 this would add up to 40 centimetres to sea levels, melt rate would continue to accelerate until 2300, and sea levels would continue to rise after that for thousands of years. The good news, said the scientists, is that their research suggests it's not too late to stop this, if we're prepared to take tough action to reduce greenhouse emissions. "A lot of people are out there saying there's no point -- we're in that world now where it's all going to happen," said researcher Dr Chris Fogwill of the Climate Change Research Centre at the University of New South Wales. "But actually, what this modelling shows is there is still an opportunity, even now, to keep below these thresholds, where we avoid that long-term commitment."

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So the floating kilometers thich ice shelves might wander off and melt. They can't melt where they are, it's too cold. Then the ice sheets will be exposed to the same very cold water that freezes all the time when it is exposed to the atmosphere that did not melt the ice shelves and this will melt the ice sheets.... yeah, right.

Obviously this will need lots of money thrown at the researchers, they need to keep working. That stuff about the ice mass increasing needs a come back!

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Climate News
[h=1]Did AGW slow Sea Level Rise?[/h] Guest essay by Rud Istvan The abstract of a new Science paper by JPL’s Reager based on GRACE claims that AGW caused more landfall precipitation from 2002 to 2014, that ~3200 gigatons (cubic kilometers) was retained as groundwater, and that this slowed annual sea level rise by ~0.71mm/year. The paper is paywalled, but the phys.org…

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Jack Hays said:

Climate News
[h=1]Did AGW slow Sea Level Rise?[/h] Guest essay by Rud Istvan The abstract of a new Science paper by JPL’s Reager based on GRACE claims that AGW caused more landfall precipitation from 2002 to 2014, that ~3200 gigatons (cubic kilometers) was retained as groundwater, and that this slowed annual sea level rise by ~0.71mm/year. The paper is paywalled, but the phys.org…

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LOL...

When will they understand what "cyclical" means?

Re: Antarctic ice shelf collapse and unstoppable sea level rise 'very likely' without

Manc Skipper said:

Meanwhile in the far North, Alaska wants to drill in the Wilderness Refuge to pay for remediation of climate change damage.....

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You Brits use petroleum just like the rest of the world. Gve it a rest.

I hear the North Sea is nice this time of year