Antarctica Is Losing Ice Faster Every Year (qz.com)
A survey of satellite data published in the journal Cryosphere confirms what scientists have suspected for a while now: ice loss from the critical region of Antarctica is happening at an increasingly fast pace. Quartz reports: In total, researchers found that Antarctica lost roughly 1,929 gigatons of ice in 2015, which amounts to an increase of roughly 36 gigatons per year every year since 2008. (A gigaton is one billion tons.) Nearly 90% of that increase in loss occurred in West Antarctica, "probably in response to ocean warming," according to NASA. The new data analysis mostly confirms other recent research, but does so with a higher degree of precision by using a new technique that can process a larger amount of satellite data than was possible before.
West Antarctica has been losing a lot of ice in recent years, and at an ever-growing pace, while East Antarctica is losing ice more steadily. The West Antarctic ice sheet is of particular concern because, like a building that stands on an uneven foundation, it is inherently unstable, making it especially vulnerable to the warming climate. If the entire ice sheet were destabilized and melted into the sea, researchers estimate it would lead to 3 meters (9 feet) of sea level rise globally. Models suggest that under a low-emissions scenario, where the world commits to "peaking" and then steadily reducing emissions in the near future, complete destabilization of the West Antarctic ice sheet is possible to avoid. But under medium- or high-emissions scenarios, the loss of the ice sheet becomes inevitable.
West Antarctica has been losing a lot of ice in recent years, and at an ever-growing pace, while East Antarctica is losing ice more steadily. The West Antarctic ice sheet is of particular concern because, like a building that stands on an uneven foundation, it is inherently unstable, making it especially vulnerable to the warming climate. If the entire ice sheet were destabilized and melted into the sea, researchers estimate it would lead to 3 meters (9 feet) of sea level rise globally. Models suggest that under a low-emissions scenario, where the world commits to "peaking" and then steadily reducing emissions in the near future, complete destabilization of the West Antarctic ice sheet is possible to avoid. But under medium- or high-emissions scenarios, the loss of the ice sheet becomes inevitable.
When I see scientists use words like probably or likely I cringe a bit.
Even when the ice melt has destroyed cities, creating new borders for nations with lands near sea level, there will still be deniers claiming a population of 7 billion humans had nothing to do with it... despite the historic release of sequestered carbon associated with our species' selfish, expected level of comfort.
Happiness in intelligent people is the rarest thing I know.
Ernest Hemingway
Yes, this time is real.
have shown the opposite. The Little Ice Age was from about 1300 until 1850 so we're still returning to normal.
Itâ(TM)s gaining ice per renowned scientist Rush Limbaugh and the high school drop outs who listen to him.
That's cherry picking the region, since NOAA says Antarctica is gaining ice mass overall. You're looking at a tiny area of the continent, and worrying about it. Furthermore, Western Antarctica is also the site of a lot of geothermal activity which could very well be why it is losing ice. But the continent, as a whole, is gaining.
Browsing at +1 - no ACs, I ignore their posts. So refreshing!
I honestly looked this up two weeks ago. I live in Los Angeles and if all the ice north and south melts it really doesn't look all that much different here. To be honest most places do not have the nice warm weather we have here but it looks like that will change and there will actually be more ideal weather in higher northern latitudes. So it suggests to me I should get off my butt and save for some northern real estate. Northern California here I come.
I'm still upset about the breakup of pangea. Ticks me off when the world changes.
The word 'volcano' doesn't appear in the science paper; researchers discovered something close to a hundred volcanoes under Antarctic ice last year. Nobody has any idea how active they are.
You know, I get the carbon-doom cult focus; its pretty much only game in town with money or attention when it comes to climate-study of any kind (no deep-AI sims or summits on the nitrogen cycle it seems - which is ~80% of atmosphere but whatever).
But to not even mention 'volcano' is kind of behind the cutting edge in awareness of Antarctica, especially its thermal budget regarding ice at this point. At least a paragraph or something, jeesh.
Once we lose all of our permafrost, there will be slightly less objective evidence of global warming - expect the memories of the 'icy north' to become fake news to future generations of "conservatives."
Honestly though, once the baby boomers finally die off, I expect most of what is currently defined as conservatism be be thought of as a horrible nightmare of an generation willfully blind to their own cruelty and greed, well beyond most surrounding generations.
They will be remembered less than fondly - much like the dark ages. Futurama defined it well - the stupid ages.
Since when is one foot = 0.75 of a mile?
And a better approach would be the surface area of a sphere, 4 pi r ^ 2.
4 * pi * 6378 * 6378 = 500,000,000 km^2 according to my trusty slide rule.
Volume of 1 m coverage is 500,000,000,000,000 m^2 or 500,000 giga tonnes of water if I have not slipped a few zeros.
We're fucked, sorry for the language but we're fucked, entirely.
Still, it shocks me how many times I have to explain to my girl (and friends and family) why we shouldn't be god damn breeding.
Not long now, it's exponential (for the most part)
thanks mcdonald for distributing all those plastic straws.....
We are only 15-25,000 years out of the last ice age in a 110,000 year cycle.
Since we are most likely to continue to warm for some 10s of thousands of years, based on past cycles, it seems inevitable that Antarctica is doomed to lose its major ice sheets, whether mankind does anything about emissions or not.
It doesn't matter what the science says. I simply does not matter. Humanity is going to eat the planet. Humanity is going to burn every molecule of hydrocarbons in can get its paws on. No laws, no international agreements, no nothing - it does not mean shit.
This thing is a juggernaut, and step out of the way if you can (but you can't, really). The money power wins. No, this thing is going to play itself out.
Good luck to us all!
My bad. My drinking problem seems to be getting out of hand, and it takes a lot of ice to keep my bloody marys cold.
Sorry.
I said I'm sorry.
Well then you sleep with me, that's one night I won't shrink the ice shelf. furfuksake, it ain't hard.
FFS, what's your virginity against the environment? Take one for the team. Hell, take one for the planet!
Sure man, it's the rest of the scientific community that can't estimate likely sea level rises properly. Captain cubic miles is dead on balls accurate.
So the original calculation, indicating that the sea levels won't rise very much, is still accurate.
Nope, but your endorsement of it, well, given your lack of credibility, that just seals the deal that it's wrong. Sorry, but you just have a terrible personal history, and all you've served to do is discredit yourself again.
Thanks, as long as you are so consistently wrong, you serve as an excellent canary.
Soon have a southward passage to India.Soon in geographic scales.
This article, or some variant, is reposted to /. every week.
Pick one:
a) Fortunately Antarctica is a myth, so there's no cause for concern.
b) We're going to be in deep shit when the penguiform balrogs thaw out of the ice.
Sheesh, evil *and* a jerk. -- Jade
As a German, I have been a strong believer in global climate change for a long time. I even have a solar roof, drive a low emission car etc. However, I recently woke up to all the lies from liberals. "How do you know a liberal is lying? Her lips are moving...". Given how shamelessly they lie in all areas to further their own agenda, it would be unreasonable to assume that this is not a big lie. My next car will definitively be a gas guzzling sports car. Eat it libtards!
They Want Their Argument Sketch Back
https://www.theguardian.com/wo...
When the last cube of ice melts... thats when the temp starts going up... alot. Time for the worlds scientists to get concurrence on environmental status and trending so we can share FACTS rather making it a case of Fealty or Opinion or interpretation. We need fact Dammit!
Time for a new Political party in the US (or two!) One is off the rails Other cant pony up a leader.
So if I read this right they are comparing 2008 data collected by synthetic aperture radar to 2013-15 data obtained from Landsat 7 and 8 imagery.
They optimize calculations for idealized flow rates and produce these values with overlapping error margins and declare a conclusion based on 2 calculated data points using two different observation and calculation methods.
Discharge (Gt yr1)
2008: 1894 ± 43 (synthetic aperture radar)
2015: 1929 ± 40 (Landsat 7 and 8 imagery)
Seems legit to me...
Im worried about, its whats trapped inside that ice. Be a son of a gun if we were to see our species perish... what the hell are the odds of that.
[($)]
"Researchers at NASA have discovered a huge upwelling of hot rock under Marie Byrd Land, which lies between the Ross Ice Shelf and the Ross Sea, is creating vast lakes and rivers under the ice sheet. The presence of a huge mantle plume could explain why the region is so unstable today"
November 9, 2017
https://hotair.com/headlines/archives/2017/11/nasa-discovers-mantle-plume-thats-melting-antarctica/
Messeage to Media, and "scientists" :
Even if you put me on the last remaining little iceberg in the middle of what used to be antarctica, I WILL NOT believe it.
At least I will NOT do anything about it.
There you have it, no stop nagging me with this "fake news" about that global warming.
2000 Gt gain > 1929 Gt loss. The uncertainty over how much is lost via sublimation and water runoff clouds whether Antarctica has a net gain or loss of ice.
The last study I saw on this (from 2015 based on satellite data) concluded the net effect is Antarctica is gaining ice.
People can keep denying human-made climate change or whatever, we must do something to at least ease the actual problem, like it or not ugly things are comming and something must be done.. Also, I would be more worried about anything comming from the ice capes, who knows what kind of thing is still trapped in those ice blocks, could vi lethal viruses, weird animals or neuro-toxics.
https://phys.org/news/2016-08-antarctic-sea-ice-source-mercury.html
South Africa is not that far from Antarctica.
Maybe Elon Musk should remember his roots.
If he can put a roadster in space with plans to go to Mars, he might have the ability to pull this off.
Since when did Slashdot get inundated in quasi-intellectual climate sceptics?
(using www.gnu.org/software/units -v)
article says for 2015 , 1929 gigatons of ice melted.
waterdensity taken as a gram / cm^3
You have: 1929 gigatons / waterdensity
You want: km^3
1929 gigatons / waterdensity = 1749.9594 km^3
the volume of that water
wikipedia Earth says area of oceans is 361132000 km^2
The volume of water spread over all oceans:
You have: 1749.9594 km^3 / 361132000 km^2
You want: millimeter
1749.9594 km^3 / 361132000 km^2 = 4.8457611 millimeter
So for 2015, this accounts for ~5 mm of sea rise. (Not accounting
for change of temperature of the water.)
You have no idea of what you are talking about, it's actually cute. 2 degrees warmer might mean different things when you talk about condensation or evaporation and it also depends on the air pressure and wind currents of the particular place. Do you ever wonder why people study these things? It is because they are complex and rarely solvable by intuition.
more government control. yeh, that'l fix it.
So, just 4 years ago NASA published this.
https://www.nasa.gov/content/g...
After a period of unusually high amounts, why would it be surprising to see a regression to the mean?
Discuss
Just another day in Paradise
Oh yeah, the sea rise will be soooo fast... I can move houses every 5 years and still make it by 2050 500ft above sea level.
Yawn.
Wake me up when the whole ice sheet slips at 500 miles per hour, and causes a 1000ft tsunami like 12500 bc.
Oh I dont see any falls in prices in sea side mansions.
If that were true, humans would live shorter lives and the number would go down. On average, both figures are increasing. The problems of America are not universal. Americas problem are unhealthy eating habits, overweight, lack of exercise and a Medical Industrial Complex running Amok. $1000 for half an hour of seeing a medicus, millions of untreated sick people and similar stuff.
That creates new problems, such as a lack of habitat for tigers, but that is simply due to competition for space.
I can just buy a ticket and fly to somewhere 1000ft above sea level.
Big deal. Poor can walk.
btw slash, your captyasss, are FUCKING HARD TO READ DIP SHITS
The ice of Antarctica already floats in the ocean. If you melt it, no change because the ice was already displacing the same volume. See Archimedes Law.
You have an argument for Greenland ice and ice in the North of Canada and Russia MAYBE.
And causing an ice age that most humans wont survive but some will and that is good for the planet not so good for those living at the time.
I dont give a shit no kids and on the way out sorry about your luck. greed has doomed them.
...about climate change and CO2 emissions, a paper published last August (Seroussi et al. 2017) demonstrated that a mantle plume under Western Antartica is heating the region. NASA JPL news release of Helene Seroussi's paper : https://www.jpl.nasa.gov/news/... Full research paper (not paywalled): https://www.researchgate.net/p... Interesting that the Gardner paper in The Cryosphere makes no mention of mantle plumes (a least a quick search for both words turned up zero results). Since both authors are at JPL you would think that Alex Gardener would be aware of Helen Seroussi's 2017 paper and at least mentioned it.
In my lifetime I've heard:
We're out of oil
Out of water
Going to die in nuclear holocaust
From plague
Starve to death
Freeze to death
Acid rain
Ozone hole
GMO food
Robots/AI
Sun spots n flares
Government slavery
Russian invasion
Chinese invasion
Asteroid impact
Giant earthquake
And probably a few other assured forms of death all predicted to have occurred previous to now by Authority Figures and other Smart People.
Ultimately all any of those people wanted was more funding. Enough to get to retirement. Then they retired and we got a new funding required disaster headed our way.
AGW? Yawn.
And a ton is 1,000kg. Also, ice is the solid form of water that occurs below 273.15K and standard pressure.
Thank god. Where I sit had a mile of ice only 10,000 years ago.
The further we get from that, the better.
I am ready for my downmod, Mr. DeMille!
(-1: Post disagrees with my already-settled worldview) is not a valid mod option.
Bullshit, Billions of people live a much less CO2 intensive life than you do. If they can do it, why you so stupid?
Americans consume 5x the world average, so there is lots of places you could cut before starving.
All those DMI links are 404 errors....and the Rutgers university pretty pictures show that spring is trending down 3 times faster than winter is trending up. Have a guess what happens when snow cover is decreasing 3 times faster than it is accumulating. How much do you think is going to turn into glaciers...spring
Lynwood the denier links to denier sites full of fake news again.
This is the West Ice sheet. All these studies based on melting seem to miss the obvious fact that the Western Ice sheet is unstable and could just slide into the ocean. I think 'not melting' but displaced into the ocean is a super obvious wrinkle, but I don't think it gets enough attention.
>>"ad space available -- low rates!!!"
There is an anime series about Antarctica airing right now. Sora yori mo Tooi Basho or Yorimoi for short is an unusual twist on the usual "cute girls going cute places doing cute things" genre and proved suprisingly enjoyable. Characters, story&plot, music, mood, graphics, voice, everything is top notch. It shot to 80.6% rating on MAL in no time, 8 of 13 episodes out so far and not a minute of letdown.
Beware your lack of understanding. Gravity and rotation and the sun and the moon all have an impact. Rest assured a 3m sea level rise at high tide near the equator would not be reflected in the Antarctic at low or high tide. ...
One of the craziest and most counter-intuitive things about ice sheets and sea level rise is the effect that the gravitational attraction of ice sheets has on the sea level around them. There is enough gravitational attraction in the ice sheets to raise sea level next to them by tens of meters to hundreds of meters near the Antarctic ice sheet. Research by Dr. Jerry Mitrovica has found that if you melted enough ice off of Greenland to raise average sea level by 1 meter that the drop in gravitational attraction coupled with the rebound of the land from the weight of the ice going away would drop sea level around Greenland by 5-7 meters.
Here's a short video from Dr. Mitrovica that explains it:
The Fingerprints of Sea Level Rise
And here's a longer one that goes into more detail while taking on several denier memes about sea level rise:
The Fingerprints of Sea Level Change
Of course if sea level is dropping near the ice sheets as the gravity releases it hold on the sea that means that sea level will have to rise even more the further you get from the ice sheet to compensate. For example if Greenland melts enough for an average sea level rise of 1 meter the sea level rise on the US gulf coast could be something like 1.25 meters.
Stop peddling lies Lynnwood. You already know thats false as shown to you already here
And last year it had record ice growth.
So, since the earth's poles are about to switch (see http://www.newsweek.com/earth-...), could this have an affect on what's happening? And since this has happened so many times before are we to believe this is the only time in the history of the earth that the polar caps are melting?