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View Full Version : Arctic Ocean could be ice-free in summer within 100 years, scientists say


tobe
Aug 25th, 2005, 10:05 AM
Okay, something serious, possible doesn’t fit in here, but hey, it will/does affect everyone:

http://www.eurekalert.org/pub_releases/2005-08/uoa-aoc082205.php

The current warming trends in the Arctic may shove the Arctic system into a seasonally ice-free state not seen for more than one million years, according to a new report. The melting is accelerating, and a team of researchers were unable to identify any natural processes that might slow the de-icing of the Arctic.

Such substantial additional melting of Arctic glaciers and ice sheets will raise sea level worldwide, flooding the coastal areas where many of the world's people live.

Melting sea ice has already resulted in dramatic impacts for the indigenous people and animals in the Arctic, which includes parts of Alaska, Canada, Russia, Siberia, Scandinavia and Greenland.

"What really makes the Arctic different from the rest of the non-polar world is the permanent ice in the ground, in the ocean and on land," said lead author University of Arizona geoscientist Jonathan T. Overpeck. "We see all of that ice melting already, and we envision that it will melt back much more dramatically in the future as we move towards this more permanent ice-free state."
The report by Overpeck and his colleagues is published in the Aug. 23 Eos, the weekly newspaper of the American Geophysical Union. [...]

"In the past, researchers have tended to look at individual components of the Arctic," said Overpeck. "What we did for the first time is really look at how all of those components work together."

The team concluded that there were two major amplifying feedbacks in the Arctic system involving the interplay between sea and land ice, ocean circulation in the North Atlantic, and the amounts of precipitation and evaporation in the system.

Such feedback loops accelerate changes in the system, Overpeck said. For example, the white surface of sea ice reflects radiation from the sun. However, as sea ice melts, more solar radiation is absorbed by the dark ocean, which heats up and results in yet more sea ice melting.

While the scientists identified one feedback loop that could slow the changes, they did not see any natural mechanism that could stop the dramatic loss of ice.

"I think probably the biggest surprise of the meeting was that no one could envision any interaction between the components that would act naturally to stop the trajectory to the new system," Overpeck said. He added that the group investigated several possible braking mechanisms that had been previously suggested.

In addition to sea and land ice melting, Overpeck warned that permafrost--the permanently frozen layer of soil that underlies much of the Arctic--will melt and eventually disappear in some areas. Such thawing could release additional greenhouse gases stored in the permafrost for thousands of years, which would amplify human-induced climate change.

Overpeck said humans could step on the brakes by reducing carbon dioxide emissions. "The trouble is we don't really know where the threshold is beyond which these changes are inevitable and dangerous," Overpeck said. "Therefore it is really important that we try hard, and as soon as we can, to dramatically reduce such emissions."

It is sad that no one really seem to care….it seems so far away for everyone! People only realize sth when it’s too late!!! Sorry, I am not an eco-freak, but I hate this ignorance for the obvious! THIS IS THE REAL THREATENING TERRORISM! Anyway, Thank U Mr Bush, it is obvious more important to care about “sins” like Gay marriage and Abortion….. :rolleyes:

SelesFan70
Aug 25th, 2005, 12:00 PM
Beach trip to Greenland! :banana:

!<blocparty>!
Aug 25th, 2005, 12:06 PM
Beach trip to Greenland! :banana:

Jesus. That really is ignorant.

Yeah... it was on the news yesterday that there are forest fires in spain and massice water shortages (even though 300 new Golf Courses are planned for one of the worst effected area's) and less than the length of Britain away, there are massive floods.

Pengwin
Aug 25th, 2005, 12:11 PM
Well my geography teacher told me that Belgium and Holland will completely drown by 2025...

SelesFan70
Aug 25th, 2005, 12:12 PM
Jesus. That really is ignorant.

Yeah... it was on the news yesterday that there are forest fires in spain and massice water shortages (even though 300 new Golf Courses are planned for one of the worst effected area's) and less than the length of Britain away, there are massive floods.

Actually, the poster blaming Bush for centuries of pollution was ignorant... :rolleyes: Global warming is happening...it could be debated as to who is to blame...but there's not much you can do to stop it so you might as well plan a beach trip to Greenland. :banana: No sense in worrying about it.

!<blocparty>!
Aug 25th, 2005, 12:18 PM
Actually, the poster blaming Bush for centuries of pollution was ignorant... :rolleyes: Global warming is happening...it could be debated as to who is to blame...but there's not much you can do to stop it so you might as well plan a beach trip to Greenland. :banana: No sense in worrying about it.

Where did he blame him for centuries of pollution?

No sense in worrying about it? Yeah... Just carry on not worrying.

DuLeafs
Aug 25th, 2005, 12:25 PM
Beach trip to Greenland! :banana:

:lol: Nice one

DuLeafs
Aug 25th, 2005, 12:26 PM
Well my geography teacher told me that Belgium and Holland will completely drown by 2025...

:scared: Shit, and i am about to settle in Holland in december... :bolt: :help:

tobe
Aug 25th, 2005, 01:47 PM
Actually, the poster blaming Bush for centuries of pollution was ignorant... :rolleyes: Global warming is happening...it could be debated as to who is to blame...but there's not much you can do to stop it so you might as well plan a beach trip to Greenland. :banana: No sense in worrying about it.

I never blamed Bush for centuries of pollution! But he is to blame for doing nothing to stop it and for ignoring it :rolleyes: Kinda expected reactions like that :retard:

Wannabeknowitall
Aug 25th, 2005, 02:11 PM
I'm going to say the same thing. Yall can call it ignorance or whatever.
Should I start making a beach resort in Philadelphia?
I don't mind that, it would mean New Jersey would be under water.

OK. Out of my system. I don't know what can be done. It would have to be drastic. Something that Americans in general aren't willing to do. Something definately the government isn't willing to do. Let's make them though. :)

rand
Aug 25th, 2005, 02:29 PM
so, if I read the article correctly
a)whatever we do, it won't change a thing (some mechanisms could slow it down, but that's it....)
b)they don't even know what the impact of human-caused co2 emission on this is, neither the treshold at which it makes a difference....

then why is it criminal not to do anything about it? if the only thing we can do is slow it down, and the population's planet gets bigger and bigger, then at the time this will become lethal, taking precautions will cause more deaths, no? :confused:

tobe
Aug 25th, 2005, 02:42 PM
Yeah, but i think it is frightening how FAST this goes! Couple of years ago, it was said that it could be stoppabl or at least restrained in a way! Now, they say, even IF we all would decrease COs and everything else drastically it couldn't be contained! But the thing, we don't do ANYTHING! So, now it is only 100 years, and scientists said they are surprised how fast the ice is melting (much faster than anyone expected)
I just hate that "We can't do anything so fuck off" attitude! Don't get me wrong, I don't have THE solution for a better world, but at least one should try something and not ignore the possibilities (like alternative gas for cars, solar energy etc) cos it is too long winded or whatever! I mean, the possibilities we have should AT LEAST be used!
Amen (my god, I feal like a priest = Sorry guys) :-)

rand
Aug 25th, 2005, 03:30 PM
it doesn't mean it goes faster I think, it only shows how little we actually know about climate....this was a new kind of research, maybe the same conclusions would have appeared ten years ago if thy had tried the same test ;)
of course it frightens me as much as anyone else, but somehow I can't take everything so-called specialists say seriously....

SelesFan70
Aug 25th, 2005, 10:23 PM
I never blamed Bush for centuries of pollution! But he is to blame for doing nothing to stop it and for ignoring it :rolleyes: Kinda expected reactions like that :retard:

Damn...I really wish Bush had the power y'all think he has! :devil:

Here's a blurb about Al Gore doing his part for global warming a few years ago... :lol:

GLOBAL WARMING ALERT: GORE BURNS 439,500 LBS OF FUEL TO ATTEND SUMMIT

"The most vulnerable part of the Earth's environment is the very thin layer
of air clinging near to the surface of the planet, that we are now so
carelessly filling with gaseous wastes that we are actually altering the
relationship between the Earth and the Sun - by trapping more solar
radiation under this growing blanket of pollution that envelops the entire
world," Vice President Gore told the U.N. Global Warming conference of 159
nations this morning in Koyto, Japan.

In what was one the most dramatic speeches in recent memory, Gore announced
to world leaders: "Whether we recognize it or not, we are now engaged in an
epic battle to right the balance of our Earth, and the tide of this battle
will turn on when the majority of people in the world become sufficiently
aroused by shared sense of urgent danger to join an all-out effort."

Applause filed the halls of the Kyoto International Conference Center. "We
must achieve a safe overall concentration level for greenhouse gases in the
Earth's atmosphere."

carbondioxidemethanenitrousoxidehydrofluorocarbons perfluorocarbonssulfurhexa
chloride.

The message is serious. So serious in fact, that Vice President Al Gore is burning more than 439,500 pounds
of fuel, or 65,600 gallons, at a cost of more than $131,000 on his 16,000
mile daytrip, just to deliver the warning.

Air Force II's Global Warming Express features an itinerary that takes the
vice president from Washington to Florida to Washington to Alaska to Japan
and back -- all in just 72-hours.

Saturday, December 6, 1997

9:45 a.m. Air Force II departs Andrews AFB enroute Fort Myers, Fla.

12:05 p.m. Air Force II arrives Southwest Florida Regional Airport. Gate 69-A.

2 p.m. Vice President Gore addresses the 50th Anniversary/Rededication,
Everglades Municipal Airport, Everglades National Park.

6:40 p.m. Air Force II departs Florida en route AFB.

8:35 p.m. Air Force II arrives at Andrews Air Force Base.

9:45 p.m. -- Air Force II departs Andrews Air Force Base en route Elmendorf
Air Force Base

Sunday, Dec. 7

1:15 a.m. -- Air Force II arrives Elmendorf Air Force Base, Anchorage, Alaska

2:45 a.m. -- Air Force II departs Elmendorf Air Force Base en route Osaka, Japan

Monday, Dec. 8

5 a.m. -- Air Force II arrives Osaka International Airport, Osaka Japan


11:15 p.m. -- Air Force II departs Osaka, Japan en route Elmendorf Air Force
Base

12:35 p.m. -- Air Force II arrives Elmendorf Air Force Base, Anchorage, Alaska

2:05 p.m. -- Air Force II departs Elmendorf Air Force Base en route Andrews
Air Force Base

Tuesday, Dec. 9

12:45 a.m. -- Air Force II arrives Andrews Air Force Base

----

"The extra heat which cannot escape is beginning to change the global
patterns of climate to which we are accustomed. Our fundamental challenge
now is to find out whether and how we can change the behaviors that are
causing the problem."

Gore's plane, a Boeing 707 gas guzzler burns on average 4.1 gallons a mile.
The complete Washington to Florida to Washington to Alaska to Japan and
return to Washington trip calculated from commercial air mileage tables is
just over 16,000 miles total. Gas gallons needed for AIR FORCE II to go
16,000 miles: 65,600. Applying the average price of $2.01 per gallon of
Jet A to the 16,000 mile r/t -- the fuel cost alone passes $131,000.00.
There are 6.7 pounds per gallon of jet fuel. Total pounds of fuel burned on
Gore's Global Warming Express -- 439,500.

:haha:

QuicKyMonSter
Aug 26th, 2005, 12:21 AM
Well my geography teacher told me that Belgium and Holland will completely drown by 2025...
:scared:jesus....i hope he's wrong :sad:

rand
Aug 26th, 2005, 05:51 AM
he definitely is wrong, for Holland it's possible, big parts of the ****ry have been built below see level, so if the sea rises they can get problems very quickly...but the prognose for belgium is more that we'd lose 30 to 40 km inlands, which means most of west-flanders, but not much more than that...

CooCooCachoo
Aug 26th, 2005, 08:11 AM
he definitely is wrong, for Holland it's possible, big parts of the ****ry have been built below see level, so if the sea rises they can get problems very quickly...but the prognose for belgium is more that we'd lose 30 to 40 km inlands, which means most of west-flanders, but not much more than that...

I am sure the Wallons will party hardy ;)