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Early explorer logbooks reveal Antarctic sea ice has barely changed in 100 years

Submitted by: Odio @ 08:46 AM | Friday, November 25, 2016 | (url: http://www.scienc...)

Logbooks from the likes of Captain Robert Scott and Sir Ernest Shackleton - key figures in the 'Heroic Age' of Antarctic exploration - have revealed that sea ice levels in Antarctica have barely changed over the past century, despite global temperatures hitting record highs year after year.

That finding might seem counterintuitive, especially given that sea ice in the Arctic has never been so depleted. But it might actually help us explain one of the biggest mysteries surrounding climate change: how Antarctica appears to be thriving - and sometimes even expanding - despite all odds.

"The missions of Scott and Shackleton are remembered in history as heroic failures, yet the data collected by these and other explorers could profoundly change the way we view the ebb and flow of Antarctic sea ice," says lead researcher Jonathan Day from the University of Reading in the UK.

Day and his team examined observations of sea ice recorded in the official logbooks from 11 voyages that took place between 1897 and 1917, including three missions led by Captain Scott, two by Shackleton, and sea-ice records from French, German, and Belgian explorers.

These logbooks include observations of many environmental and meteorological phenomena, recorded several times a day throughout each mission by the explorers and their crew.

Many of the logbooks had been recently digitised as part of the International Comprehensive Ocean-Atmosphere Data Set initiative, but others were digitised especially for this study, and the information within was collated into a dataset of 191 observations of sea ice positions spanning two decades.

These observations were then compared to satellite data from 1989 to 2014, and other than the sea ice edge in the Weddell Sea declining by about 14 percent over the past century, the team found that ice conditions during the golden age of exploration were surprisingly similar to those in Antarctica today.


11-25-16 - 04:26 PM
Originally posted by Goshin  
ya but free energy with no pollution is really fucking gay
that shit is for faggots

yeehaw :fu:


Solar Energy Isnā€™t Always as Green as You Think - IEEE Spectrum

Originally posted by Goshin  
The initial refining turns quartz into metallurgical-grade silicon, a substance used mostly to harden steel and other metals. That happens in giant furnaces, and keeping them hot takes a lot of energy, a subject we’ll return to later. Fortunately, the levels of the resulting emissions—mostly carbon dioxide and sulfur dioxide—can’t do much harm to the people working at silicon refineries or to the immediate environment.

The next step, however—turning metallurgical-grade silicon into a purer form called polysilicon—creates the very toxic compound silicon tetrachloride. The refinement process involves combining hydrochloric acid with metallurgical-grade silicon to turn it into what are called trichlorosilanes. The trichlorosilanes then react with added hydrogen, producing polysilicon along with liquid silicon tetrachloride—three or four tons of silicon tetrachloride for every ton of polysilicon.


fuckin nerds

they can't even make these without polluting yet

Originally posted by Goshin  
ya but free energy with no pollution is really fucking gay
that shit is for faggots

yeehaw :fu:


free energy that isn't free (actually more expensive) and has substantial pollution associated with every aspect of its manufacturing.

[img]http://us.res.keymedia.com/files/image/confused-meme.jpg[/img]

but when would this be new for goshin
11-25-16 - 05:40 PM
Originally posted by WarBuddha  
So at 5,000 a KW that would only cost what, 100 trillion dollars?


well the point was that i think you vastly underrate the utility of solar power

while i don't think we're going devote an entire state to being a solar panel, there is certainly a role for it to make a significant impact in how we consume energy
11-25-16 - 05:45 PM
I blame global warming on burning man
11-25-16 - 05:47 PM
better than blowing off the tops of mountains and then burning the shit we find
are you fucking kidding me right now you stupid shit
11-25-16 - 05:52 PM
ITT Goshin doesn't understand how things are made.
11-25-16 - 05:54 PM
How many reports from Academic studies on just about anything, has in the conclusion "Not quiet fucking sure, need more funding to maybe provide more insight"? In my country, and I expect in other socialist parts of the world, there has been an explosion in people studying environmental science at university.

An oversupply of well meaning, greenies who will go on to flip burgers while bitching about "our" impact on environment. Then one day the penny drops and they realise they contribute fuck all, however are contributing to pollution with their meaningless lives.

http://www.mannkal.org/downloads/environment/scepticshandbook.pdf

Want to save the planet? Turn the welfare tap off.
11-25-16 - 05:54 PM
Originally posted by Goshin  
better than blowing off the tops of mountains and then burning the shit we find
are you fucking kidding me right now you stupid shit


yes...no mountain top blowing or digging to find metals or materials needed for solar panels

it came from the sun for the sun

like magic but better and without playing cards

LOL
11-25-16 - 05:57 PM
Originally posted by WarBuddha  
ITT Goshin doesn't understand how things are made.


not shocking

probably eating austin bbq playing on his iphone while bitching about people who hunt, living wages for workers, and how second hand smoking and bbq smoke are negative externalities a civilized society shouldn't have to live with

we have an entire generation of these folks

the kind who want the sidewalks cleared of snow before the roads because bike lives matter
11-25-16 - 05:59 PM
Originally posted by Nmag  
How many reports from Academic studies on just about anything, has in the conclusion "Not quiet fucking sure, need more funding to maybe provide more insight"? In my country, and I expect in other socialist parts of the world, there has been an explosion in people studying environmental science at university.

An oversupply of well meaning, greenies who will go on to flip burgers while bitching about "our" impact on environment. Then one day the penny drops and they realise they contribute fuck all, however are contributing to pollution with their meaningless lives.

http://www.mannkal.org/downloads/environment/scepticshandbook.pdf

Want to save the planet? Turn the welfare tap off.


i enjoy the talk that the science is settled on this topic

there is no more discussion

while they preemptively cry and complain that Trump will cut grant funding and further research money towards GLOBAL WARMING TOPICS

wait.......what else is left to explore here? I thought the science was settled.

people as dishonest as they come

#GIMME #GIMME #GIMME #GIMME #GIMME
11-25-16 - 05:59 PM
Originally posted by absent  
The arctic ice is also up since 2012, even though it was supposed to all be gone by this September according to climahoaxers.

Can you provide a reference for that? Because everything I find says we're hitting a record low: 2016 Arctic Sea Ice Wintertime Extent Hits Another Record Low | NASA

Originally posted by absent  
Furthermore, it really, really doesn't matter, since at one point greenland was... green and was farmed by Vikings and the world didn't end and the polar bears didn't go extinct.
Greenland was not green for the vikings. It was always a harsh and shitty environment.
11-25-16 - 06:06 PM
wait did absent just say greenland was green

they were fucking LYING TO FUCKING WITH PEOPLE

iceland was fine
greenland sucked

you fucking retard
absent

jesus fucking christ get a clue
11-25-16 - 06:07 PM
There are ruins of Viking farms in Greenland...
11-25-16 - 06:08 PM
If there is ever a term any scientist should know never to use, it is "The science is settled"
11-25-16 - 06:10 PM
Absent is the guy that thought water could settle uneven in a pipe lmao


Good guy but low iq

Climate shit is overrated but absent is also just as dumb

I don't get why any of you enjoy arguing about this shit constantly
11-25-16 - 06:16 PM
Greenland has green areas around the coast, it probably has always had them.

Inland I would say it has always had glaciers and permanent ice.
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