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Endurance wreck: Lost ship found off Antarctic

eric3579 says...

The British Film Institute (BFI) has restored footage taken during Ernest Shackleton’s Imperial Trans-Antarctic expedition, including the poignant moment the ship’s mast collapses as Endurance is crushed by sea ice. Despite the sailors’ perilous predicament, Shackleton insisted the nitrate film was salvaged. The remastered work is part of a collection depicting early 20th century Antarctic exploration.

ant (Member Profile)

Ice Dropped Down Borehole in Antarctic Creates Unusual Sound

00Scud00 says...

We dug a hole in the Antarctic so we could re-create the sounds from the battle of Hoth, if you listen really closely you can hear the Stormtroopers missing.

BSR (Member Profile)

Why Shell's Marketing is so Disgusting

bcglorf says...

@newtboy said: "a 3' rise, which is all but guaranteed by 2100 under the most optimistic current projections."

Lies.

The most recent IPCC report(AR5) has their section on sea level rise here:
https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_Chapter13_FINAL.pdf

In the summary for policy makers section under projections they note: " For the period 2081–2100, compared to 1986–2005, global mean sea level rise is likely (medium confidence) to be in the 5 to 95% range of projections from process based models, which give 0.26 to 0.55 m for RCP2.6, 0.32 to 0.63 m for RCP4.5, 0.33 to 0.63 m for RCP6.0, and 0.45 to 0.82 m for RCP8.5. For RCP8.5, the rise by 2100 is 0.52 to 0.98 m"

And to give you maximum benefit of doubt they also comment on possible(unlikely) exceeding of stated estimates:" Based on current understanding, only the collapse of marine-based sectors of the Antarctic ice sheet, if initiated, could cause global mean sea level to rise substantially above the likely range during the 21st century. This potential additional contribution cannot be precisely quantified but there is medium confidence that it would not exceed several tenths of a meter of sea level rise during the 21st century. "

So, to summarize that, the worst case emissions scenario the IPCC ran(8.5), has in itself a worst case sea level rise ranging 0.5-1.0m, so 1.5 to 3ft. They do note a potential allowance for another few tenths of a meter if unexpected collapse of antarctic ice also occurs.

Let me quote you again: "3' rise, which is all but guaranteed by 2100 under the most optimistic current projections"

and yet the most recent collaborative summary from the scientific community states under their most pessimistic projections have a 3 ft as the extreme upper limit...

You also did however state "IPCC (again, known for overly conservative estimates)", so it does seem you almost do admit having low opinion of the scientific consensus and prefer cherry picking the most extreme scenarios you can find anywhere and claiming them as the absolute golden standard...

Temperature Anomalies By Country 1880-2017 - NASA

RFlagg says...

Conservatives: FAKE DATA. NASA is just saying this to make money [but the denial stuff is all sponsored by the fossil fuel industry who somehow isn't biased]. Climate change is fake. If you think about it, CO2 is good for plants [most are doing their max exchange, and it makes them have less nutrition... plus most of the globe isn't green, it's blue or desert... would be one thing if there was a way to keep that CO2 where the plants actually were and down where they were], its what they breath. It's a war on coal and oil. Ice levels in the Antarctic are rising [some data suggests it has, and may, but it is offset by Greenland ice loss alone, let alone ice loss from every other place like Alaska, Canada, Russia, the Nordic countries, etc]. It's cold here on January 3, so much for global warming [odd they never mention the problem on August 23 or whatever]? They said there's going to be an ice age back in the 70's [they can't show the science papers, just an article in Newsweek or Time], and just last year or so, they said solar minimums will result in another mini-ice age [again, no, nothing about climate in the actual science paper, just the press running their own version of the paper].

Mordhaus (Member Profile)

siftbot says...

Congratulations! Your video, Ice chunk dropped down 90m Antarctic Borehole, has reached the #1 spot in the current Top 15 New Videos listing. This is a very difficult thing to accomplish but you managed to pull it off. For your contribution you have been awarded 2 Power Points.

This achievement has earned you your "Golden One" Level 196 Badge!

Mordhaus (Member Profile)

Ghost in the Shell (2017) - Official Trailer

mas8705 says...

I'm going to be crossing my fingers in hopes that this is good. At least with what we got for this preview, it looks promising and people have been commending how the beginning of GITS did look to be emulated here too.

I just hope that we finally have a decent adaptation on our hands. Hell knows that if we ever need to start identifying bad films, we use "white washing" to start finding them. (Why are there white kids in the Antarctic shyamalan?!)

eric3579 (Member Profile)

Climate Change; Latest science update

newtboy says...

New, just released ocean temperature data has shown a dramatic increase in temperatures in the Northern Pacific, and a dramatic decrease in surface temperatures in the Northern Atlantic. As I understand it, those readings are not consistent with normal 'El Nino' patterns. Could this be the beginning of the end of thermohaline circulation? If that happens we'll be facing unavoidable, unpredictable, worldwide, disastrous climate change in short order.
Without the current created by the thermohaline circulations, the oceans die. Equatorial waters become much hotter...fast...and arctic and Antarctic waters become much colder...fast. Ocean organisms can't live through that kind of change, not in any sizeable way anyway. Without the oceans, the entire food web dissolves and we die.
On top of that, without the currents bringing oxygen to the lower oceans, they become anoxic. The bacteria that live in those deep waters will feed on the dead sea life and create toxic gases (hydrogen sulfide) which have, in the past, completed the extinction events by wiping out nearly all life. Once that starts, it's unstoppable and is the end. Let's hope these readings are just an over active El Nino.

What we do today has little to no effect for 50-100 years. That makes us at least 50 years too late to solve this problem, and we are still exacerbating it rather than solving it to this day.
We're hosed.
If you plan on having children in this climate, you are a child abuser IMO, and are adding to the problem with that one action more than almost any other action normal people perform. Your children will most likely not survive to old age, and absolutely won't experience the same quality of life you have.

Stupid People+Simple Questions=Face:Palm

worthwords says...

i think the objection is the implication that not knowing something equates to stupidity. You could pick any subject that is seemly simple or fundamental - such as the flags of the world, currencies - all that crap I was forced to memorise at school rather than understanding WHY we have different currencies etc.

Your strawman of london in britain is not a useful example and I hope I don't have to explain why.

>>all information is useless trivia
where on earth did that come from? I'm just saying that the ocean is one big body of water and memorising the different demarcations them is not actually very useful to most people. If you know it then good on you but if you don't - you are not by definition stupid.

For the record. I was taught Antarctic Ocean not southern so i would have failed according this silly man

Syntaxed said:

Lets say for a minute here that you are right. If someone lives in London, its useless to know that they also live in Britain? Humans have the best developed brains on Earth, and your saying that all information is useless trivia, unless it correlates to someone's little bubble of daily life?

WOW, I am gonna go forget everything I know...

Is Climate Change Just A Lot Of Hot Air?

bcglorf says...

@newtboy

#1 and #2, fine, if you won't go there to read it's now pasted in full for you:
Arctic tundra soils serve as potentially important but poorly understood sinks of atmospheric methane (CH4), a powerful greenhouse gas1, 2, 3, 4, 5. Numerical simulations project a net increase in methane consumption in soils in high northern latitudes as a consequence of warming in the past few decades3, 6. Advances have been made in quantifying hotspots of methane emissions in Arctic wetlands7, 8, 9, 10, 11, 12, 13, but the drivers, magnitude, timing and location of methane consumption rates in High Arctic ecosystems are unclear. Here, we present measurements of rates of methane consumption in different vegetation types within the Zackenberg Valley in northeast Greenland over a full growing season. Field measurements show methane uptake in all non-water-saturated landforms studied, with seasonal averages of − 8.3 ± 3.7 μmol CH4 m−2 h−1 in dry tundra and − 3.1 ± 1.6 μmol CH4 m−2 h−1 in moist tundra. The fluxes were sensitive to temperature, with methane uptake increasing with increasing temperatures. We extrapolate our measurements and published measurements from wetlands with the help of remote-sensing land-cover classification using nine Landsat scenes. We conclude that the ice-free area of northeast Greenland acts as a net sink of atmospheric methane, and suggest that this sink will probably be enhanced under future warmer climatic conditions.

#3, regardless of if it make's sense to you, and regardless of if it means a 10C warming by 2100, the IPCC scientists collaborative summary says it anyways. If you want to claim otherwise it's you opposing the science to make things seem worse than they are, not me.

#4, To tell them those things would sound like this. The IPCC current best estimates from climate models project 2100 to be 1.5C warmer than 2000. This has already resulted in 2000 being 0.8C warmer than 1900. Summer arctic sea ice extent has retreating significantly is the biggest current impact. By 2100 it is deemed extremely unlikely that the Greenland and Antarctic iccesheets will have meaningfully reduced and there is medium confidence that the warming will actually expand Antarctic ice cover owing to increased precipitation from the region. That's the results and expectations to be passed on from the 5th report from an international collaboration of scientists. Whether that fits your world view or not doesn't matter to the scientific evidence those views are founded on and supported by.

You said the ocean's may be unfishable in 20 years, and the best support you came up with was a news article quote claiming that by 2040 most of the Arctic would be too acidic for Shell forming fish. Cherry picked by the news article that also earlier noted that was dependent on CO2 concentrations exceeding 1000ppm in 2100, and even that some forms of plankton under study actually faired better in higher acidity in some case. In a news article that also noted that the uneven distribution of acidity makes predicting the effects very challenging. If news articles count as evidence I then want to claim we'll have working fusion power to convert to in 5 years time from Lockheed Martin. I'll agree with your news post on one count, the world they talk about, where CO2 emissions continue accelerating year on year, even by 2100, is bad. It's also a bit hard to fathom with electric cars just around the corner, and if not solar and wind, fusion sometime before then too, that we'll still be using anywhere near today's emissions let alone still accelerating our use.

by 2025 it's estimated that 2/3 of people worldwide will live in a water shortage.
And you link to a blog, and a blog that provides exactly zero references to any scientific sources for the claim. Better yet, even the blog does NOT claim that the access to water will be limited because of climate change, the blog even mentions multiple times how other forms of pollution are destroying huge amounts of fresh water(again with zero attributions).

Here's the IPCC best estimates for 2100 impacts regionally:
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Chapter14_FINAL.pdf

You'll find it's a largely mixed bag if you can be bothered to read what the actual scientists are predicting. Just bare in mind they regularly note that climate models still have a lot of challenges with accurate regional estimates. I guess your blogger isn't hindered by such problems though. If you don't want to bother I'll summarize for you and note they observe a mixed bag of increased precipitation in some regions, notably monsoons generally increasing, and other areas lowering, but it's all no higher than at medium confidences. But hey, why should uncertainty about 2100 prevent us from panicking today about more than half the world losing their drinking water in 10 years. I'll make you a deal, in ten years we can come back to this thread and see whether or not climate change has cause 2/3 of the world to lose their drinking water already or not. I'm pretty confident on this one.

Northern India/Southern China is nearly 100% dependent on glacial melt water, glaciers that have lost 50% in the last decade
Lost 50% since 2005? That'd be scary, oh wait, you heard that from the same blog you say? I've got a hunch maybe they aren't being straight with you...
Here are a pair of links I found in google scholar to scientific articles on the Himalaya's glaciers:
http://cires1.colorado.edu/~braup/himalaya/Science13Nov2009.pdf
I you can't be bothered to read:
Claims reported in the popular press that Siachin has shrunk as much as 50% are simply wrong, says Riana, whose report notes that the glacier has "not shown any remarkable retreat in the last 50 years" Which looks likely that your blogger found a popular press piece about that single glacier and then went off as though it were fact, and across the entire mountain range .

http://indiaenvironmentportal.org.in/files/glaciers%20and%20climate.pdf
Here's another article noting that since 1962 Himalayan glacier reduction is actually about 21%.

If you go back and read the IPCC links I gave earlier you can also find many of the regional rivers and glaciers in India/East China are very dependent on monsoons and will persist as long as monsoons do. Which the IPCC additionally notes are expected to, on the whole, actually increase through 2100 warming.

I've stated before up thread that things are warming and we are the major contribution, but merely differed from your position be also observing the best evidence science has for predictions isn't catastrophic. That is compounded by high uncertainties, notably that TOA energy levels are still not able to be predicted well. The good news there is the latest IPCC estimated temps exceed the observed trends of both temperature and TOA imbalance, so there's reason for optimism. That's obviously not license for recklessly carrying on our merry way, as I've noted a couple times already about roads away from emissions that we are going to adopt one way or another long before 2100.

Is Climate Change Just A Lot Of Hot Air?

newtboy says...

OK
#1. Your study quote which said no mechanism had been discovered.
#2. "but the drivers, magnitude, timing and location of methane consumption rates in High Arctic ecosystems are unclear."...LOCATION UNCLEAR MEANS NOT FOUND.
#3...this does not make sense, "this feedback will be moderate: of a magnitude similar to other climate–terrestrial ecosystem feedbacks" is self contradictory, since many terrestrial ecosystem feedbacks are NOT moderate...depending on the definition of "moderate". If less than 10 deg C is moderate, then they're right.
#4. You can tell them 98%+ of scientists in the field of climatology say side effects of industry/technology will cause "X" at a minimum in 100 years, and it has already caused "Y" (warming, weather changes, ocean acidification, environmental pollution, rising cancer rates, water shortages, other indisputable factors), send him back with proof of those effects, and I think same result..."no thanks".

I misunderstood I guess. If you did that, he would just be in a rubber room for claiming to be a time traveler, not seen as a visionary. ;-) If he could offer proof of the time travel, the state of the planet, and the environmental trends showing every issue is seemingly getting worse leading to cluster f*ck, it would not be a hard sell in the least, IMO. At least not to people with an IQ over 90. You don't have to abandon all those things (coal, yes), you would just have to design them better. Electric cars were often the norm before Ford in towns. Planes might be electric dirigibles, and satellites might be put in orbit by rail guns.
If you don't think 1/3 of the planet's population (a reasonable guess if water shortages continue the current trend) being migrant doesn't warrant 'panic' (which I never suggested, I will say it warrants concern even by those in the '1st' world) then I don't know what to tell you.
Citations:
#1. It may be unfishable in 15-20 years (I was off by 5 years) at current acidification rates.
http://www.ipsnews.net/2012/05/climate-change-threatens-crucial-marine-algae/
"By 2040, most of the Arctic Ocean will be too acidic for shell- forming species including most plankton. Significant areas of the Antarctic Ocean will be similarly affected, oceanographer Carol Turley from Plymouth Marine Laboratory in the UK previously told IPS."

#2. by 2025 it's estimated that 2/3 of people worldwide will live in a water shortage.
http://www.foodandwaterwatch.org/water/interesting-water-facts/
"Unless we change our ways, two-thirds of the world’s population will face water scarcity by 2025"

#3. Northern India/Southern China is nearly 100% dependent on glacial melt water, glaciers that have lost 50% in the last decade
http://www.foodandwaterwatch.org/water/interesting-water-facts/
"Rapid melting will reduce the Tibetan glaciers by 50 percent every decade, according to the Chinese Academy of Sciences
More than two-thirds of Chinese cities face water shortages"

bcglorf said:

@newtboy,

How about great big citation needed. Your making a lot of assertions and about zero references to back anything, your just one step shy of claiming because I say so as your proof.

The rotting material creates exponentially more methane than any mechanism could trap.
Citation required.

your study quote did not say that "they've identified regions up north where the soil absorbs more methane the warmer it gets
The abstract is only a paragraph and the charliem gave the link up thread, just go and read it already, they did numerical estimates AFTER going in and directly measuring the actual affects. And I must additionally add, it's not MY link but was instead the ONLY claimed evidence in thread of your catastrophic methane release.

Let me start us off, the IPCC once again summarizes your problem as follows:
However modelling studies and expert judgment indicate that CH4 and CO2 emissions will increase under Arctic warming, and that they will provide a positive climate feedback. Over centuries, this feedback will be moderate: of a magnitude similar to other climate–terrestrial ecosystem feedbacks
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Chapter06_FINAL.pdf
From FAQ 6.1

There are caveats prior to the above quote about unknowns and uncertainty and the possibility the affects will be less or more, but the consensus is, don't panic. Like I said.

As for bringing that person from 1915 in today, you don't get to tell them the environment will be destroyed 100 years from 2015 in the year 2100 as a result. You have to prove that first, which you have merely asserted, not proven. On the other hand, my evidence was bringing our visitor from the past showing them the year 2015, and the consequences of rising global temperatures by 0.8C since his time in 1915. Then I say we ask him if abandoning coal power, airplanes, satellites, and cars to prevent that warming is a better alternate future he should go back and sell the people of 1915 on. I'm thinking that's gonna be a hard sell. I'm additionally pointing out that the IPCC projections for the next 100 years is 1.5C warmer than today, so we'll be going up by 1.5 instead of the 0.8 our visitor from the past had to choose. The trick is, I don't see how you can claim that panic should be the natural and clear response. You need a lot more evidence, which as stated above you've failed to provide, and more over what you've posited is contrary to the science as presented by researchers like those at the IPCC.

It may be unfishable in 15-20 years at current acidification rates.
citation needed.

by 2025 it's estimated that 2/3 of people worldwide will live in a water shortage.
citation needed, and you need to tie it to human CO2 and not human guns and violence creating the misery.

Northern India/Southern China is nearly 100% dependent on glacial melt water, glaciers that have lost 50% in the last decade
citation needed

The downvote was not for your opinion, it was for your dangerously mistaken estimations and conclusions...
, says you. If you don't use any evidence to refute me it's still called your opinion...

Januari (Member Profile)



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