Skip to comments.Arctic Melt Unnerves the Experts
Posted on 10/02/2007 1:50:53 AM PDT by neverdem
The Arctic ice cap shrank so much this summer that waves briefly lapped along two long-imagined Arctic shipping routes, the Northwest Passage over Canada and the Northern Sea Route over Russia.
Over all, the floating ice dwindled to an extent unparalleled in a century or more, by several estimates.
Now the six-month dark season has returned to the North Pole. In the deepening chill, new ice is already spreading over vast stretches of the Arctic Ocean. Astonished by the summers changes, scientists are studying the forces that exposed one million square miles of open water six Californias beyond the average since satellites started measurements in 1979.
At a recent gathering of sea-ice experts at the University of Alaska in Fairbanks, Hajo Eicken, a geophysicist, summarized it this way: Our stock in trade seems to be going away.
Scientists are also unnerved by the summers implications for the future, and their ability to predict it.
Complicating the picture, the striking Arctic change was as much a result of ice moving as melting, many say. A new study, led by Son Nghiem at NASAs Jet Propulsion Laboratory and appearing this week in Geophysical Research Letters, used satellites and buoys to show that winds since 2000 had pushed huge amounts of thick old ice out...
Still, many of those scientists said they were becoming convinced that the system is heading toward a new, more watery state, and that human-caused global warming is playing a significant role.
In essence, Arctic waters may be behaving more like those around Antarctica, where a broad fringe of sea ice builds each austral winter and nearly disappears in the summer. (Reflecting the different geography and dynamics at the two poles, there has been a slight increase in sea-ice area around Antarctica in recent decades.)
(Excerpt) Read more at nytimes.com ...
Many, not most?
Andy Armstrong/National Oceanic and Atmospheric Administration
Retreat A photograph taken in August from an icebreaker research cruise in the Arctic Ocean, about 600 miles north of the Alaska coastline.
There was a time when global warming/cooling was called the weather. In those days it was thought of as a natural cycle. Tell your grandkids or else this knowledge will cease.
“...there has been a slight increase in sea-ice area around Antarctica in recent decades.)”
Buried, so no one will notice!
The ice loss this year in the East Siberian & Beaufort sea was caused by a persistently strong stubborn area of high pressure allowing for weeks on end of clear skies even the AGW scientists have acknowledged this much.
Meanwhile on the other side of the world Antarctica has reported record ice extent, but that's an inconvenient truth I suspect.
WE'RE ALL GONNA DIE!*
* This fact is indisputable!
I keep wondering when these articles will mention prominently that it has long been believed that Marco Polo navigated the Arctic from China over to Greenland in the 1200’s... thus the fabled “Northwest Passage”...
Believed by whom?
Marco traveled to China overland across the steppe, and returned to Europe via the southern sea route through Malaysia. I don't recall anything about long sea voyages while he was working for Kublai.
There is speculation that Marco Polo sailed the Arctic north of Siberia. His logs mentioned that his compass read a course pointing north while Polaris was at his back. This was due to magnetic variation and could only be noted if he was far north, goes the theory. His log also notes the beauty of the islands north of Siberia.
This supposedly occured during his two-decade service to the Mongol Empire.
Stem cell campaign debated The foes don't tell the truth. Search for Project Snowflake.
FReepmail me if you want on or off my health and science ping list.
In 2005 data from NASA's Mars Global Surveyor and Odyssey missions revealed that the carbon dioxide "ice caps" near Mars's south pole had been diminishing for three summers in a row.
Habibullo Abdussamatov, head of space research at St. Petersburg's Pulkovo Astronomical Observatory in Russia, says the Mars data is evidence that the current global warming on Earth is being caused by changes in the sun.
"The long-term increase in solar irradiance is heating both Earth and Mars," he said.
Oh my gahd! A whole century!
A century is an insignificant blip in historic climate models. If it happened a century ago then there historic precedence for it happening before human industry could have conceivably impacted climate change.
I hate alarmist reporting styles.
So, what was the melting blamed on a century or so ago? Horse drawn SUVs and gas lamps?
Couple of problems- recent studies show that Antarctica is the real climate driver/indicator. When it gets bigger, cooler weather is on the way and vice versa. Also, the Arctic ice generally moves from one place to another since it is just a large iceberg, so you can get more ice on one side than another.
Climates change and weather happens. Imagine a sensory deprivation tank. That’s what it would be with out variables.
Pretty damned dull.
As to the idea that we can modify where the climate is heading by recycling a beverage can or changing a light bulb shows that PT Barnum was right, he just underestimated by a factor of ten.
It is really difficult to separate the "wheat from the chaff" in many scientific studies of climate change. I really question the motives of scientists with a vested interest in human caused global warming. I am not sure that our system can purge itself of such bias. Our country's educational systems have been too "dumbed down" to support ordered minds and common sense. We are already living out Animal Farm.
You still need a very robust ship to travel at speed through "open water" that's 85% ice, plus there are imbedded icebergs.
Ditto that. During the Medieval Warm Period, the earth was warmer than it is today. What was the "arctic sea ice" doing then???
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