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Originally posted by whatsup
If we can get past these two questions,
There was also the old objection, which most scientists continued to find decisive, that the overlapping absorption bands of CO2 and water vapor already blocked all the radiation that those molecules were capable of blocking.
Mark Serreze of the U.S. National Snow and Ice Data Center in Colorado told The Independent, a London-based newspaper, "I'd say it's even-odds whether the North Pole melts out."
The article, posted on the newspaper's Web site Friday, generated some confusion as to what would actually happen at the North Pole, and in the Arctic Ocean as a whole, as the summer melt season gears up in the next few weeks.
In a telephone interview with LiveScience, Serreze explained that a melt-out at the North Pole wouldn't mean that all Arctic ice would melt. Rather, the thin, newly-formed ice around 90 degrees latitude could melt away for a few days. Such an event would be significant, he said, because any holes that have appeared in the ice at the North Pole up until now have been a result of winds pushing the sea ice around and creating cracks, not the melt-related processes that have taken hold in the Arctic in recent years.
Usually, the North Pole is covered with thick, perennial ice that forms over several years. But during last summer's record melt, which opened up the fabled Northwest Passage, a substantial amount of older ice melted. (Typically only the thinner, first-year ice melts in the summer, while the thick, perennial ice survives.) Average sea ice extent at the end of the summer was 1.65 million square miles (4.28 million square kilometers), almost 30 percent lower than the previous record low.
As winter cooled the Arctic waters, ice re-formed over the ocean, as it usually does. But this newly formed ice is thinner, first-year ice, more susceptible to melting once summer comes around again.
As it happened, wind patterns and ocean currents over the last few months moved that newly formed ice smack over the North Pole, setting up the situation where at least a temporarily ice-free North Pole could form.
"It's this symbolic thing, I think," Serreze told LiveScience. "This is where Santa Claus lives ... it kind of hits you in the stomach."
FYI There is more ice accumilation at the North Pole right now than at this time last year. Last year at this time there was 3 million square kilometers of ice area. Right now there is over 10 million square kilometers of ice area. Did the ice melt away last year? NO...then why with 3 times more ice area are they predicting it could melt away?
The continued loss of Arctic summer sea ice has been an ongoing recent trend and seems to be continuing this year. The ice areal coverage in the winter 07 period was larger than the previous year but this new ice was only thin first year ice, not the thck stuff that take years to form, and thus melts very quickly in comparison. The current rate of melting is faster than in previous years probabley due to this thin ice. It is concievable that the Arctic could become summer ice free this year and if not then probabley in a few years if current trends continue. This of course doesn't mean that there won't be ice in the winter and it won't affect the global sea level as the ice isn't on land.
Originally posted by whatsup
You who are undecided on this might want to listen to what 99% of the world's top peer reviewed scientists are saying on this. The earth is warming up folks and man's foot prints are all over the face of the planet. Use a little common sense!
[edit on 28-6-2008 by whatsup]
The claim that the debate about the severity and cause of global warming is "settled science" has taken a beating with the release of the names of 31,072 American scientists who reject the assertion that global warming has reached a crisis stage and is caused by human activity.
"No such consensus or settled science exists," Arthur Robinson, founder and president of the Oregon Institute of Science and Medicine (OISM), told a press conference May 19 at the National Press Club in Washington, DC. "As indicated by the petition text and signatory list, a very large number of American scientists reject" the hypothesis of human-caused global warming.
The institute, a non-profit research organization, first published the names and credentials of about 17,000 scientists in 2001. The current list of 31,072 Americans with college degrees in science includes 9,021 with Ph.D. degrees in various scientific fields.
Robinson said, "The very large number of petition signers demonstrates that if there is a consensus among American scientists, it is in opposition to the human-caused global warming hypothesis rather than in favor of it."
Originally posted by whatsup
Hmm, I see there was very little input to my question about whether CO2 and methane were greenhouse gases. The fact is that they are major greenhouse gases....
Originally posted by Lasheic
reply to post by traderonwallst
Global Warming does not exist.
It never has and never will
Ok....
CYCLES BABY! Its all about cycles
we heat up, we cool down
Wait wha? I think you're a little bit confused on the subject matter.
Originally posted by poet1b
Then, after the surface has frozen a few millimeters, carefully take the cup of the the freezer, cover the frozen surface with some shaved ice to create an ice cap ....