Posted on 08/11/2006 9:42:17 PM PDT by Marius3188
An improved method of measuring Antarctic snowfall has revealed that previous records showing an increase in precipitation are not accurate, even over a half-century. In the August 10 edition of Science magazine, researchers explain that their analysis of ice cores and snow pits revealed that precipitation levels in the Antarctic have in fact remained steady. The upshot of the study is that models assessing climate-change may need to be revised, as they can no longer be deemed accurate.
The multinational Antarctic team comprised 16 researchers who wanted to amass snowfall data going back 50 years to the International Geophysical Year (IGY). The data taken from the IGY is regarded as the first real study of the Antarctic, which has been ongoing ever since. This time around, however, the team found that their data contradicted computer models used to calculate global climate change, where most predict an increase in precipitation as atmospheric temperatures increase. "There were no statistically significant trends in snowfall accumulation over the past five decades, including recent years for which global mean temperatures have been warmest," said lead author Andrew Monaghan, a research associate with Ohio State University's Byrd Polar Research Center.
During the expedition, the team used data from ice core samples, networks of snow stakes and meteorological observations. Not satisfied with this data alone, the team also included ice core records from the International Trans-Antarctic Scientific Expedition (ITASE), another multinational research program that began in 1990 in order to reconstruct the continent's climate history. The latest team's voracious accumulation of data coupled with a thorough analysis provides the most accurate study to-date of the West Antarctic Ice Sheet (WAIS) and the thicker East Antarctic Ice Sheet (EAIS).
Recent observations of the WAIS, a marine ice sheet with a base below sea level, show that vast quantities of ice are melting at a faster rate than previously recorded. Many observers consider this and an increase in calving icebergs along the Antarctic's margins to be evidence of global warming. The team's findings also counter climate-change skeptics who consider a thickening of Antarctica's enormous ice sheets has stemmed the gradual rise in global sea levels.
The new study shows that current climate-change models need to be revamped if scientists are to have a more accurate representation of Antarctic weather patterns. "The year-to-year and decadal variability of the snowfall is so large that it makes it nearly impossible to distinguish trends that might be related to climate change from even a 50-year record," said Monaghan.
Al Gore's going to need to find a new line of work.
Poor guy...how many times can a guy his age keep starting over??? Maybe he can go invent something....like "cell phones" or "the horseless carriage".
Don't underestimate him. One important thing most people keep forgetting...when he first wrote his book the scientific community had proven their theories about Global "cooling".
I doubt that. He will do what liberals always do with facts that are contrary to their opinion:
Ignore them or claim a political agenda.
Or just plain lie...
-ccm
The Gorebots were sure quick to attribute last year's hurricane season to global warming. I wonder what they have to say now that we are about halfway through the season and there has still not been even one hurricane?
-ccm
Your right. From Environment News: "Gore chose January 15, 2004, one of the coldest days in New York City’s history, to rail against the Bush administration and global warming skeptics for their insistence that science should guide public policy, rather than the other way around. Global warming, Gore told a startled audience, is causing record cold temperatures."
Yes, I seem to remember that Robert Kennedy Jr was out there within a day or two of Katrina hitting, going on about how global warming and Bush's refusal to sign the Kyoto treaty had caused Katrina. Just lies - Kennedy's most recent lie is to convince the American people that GWB has destroyed everyone's faith in the electoral process by stealing elections over and over with his backdoor into the Diebold machines. You know this is a warm up to the results coming from Nov 2006 when they loose big again!!
Al Gore invented the iPod.
"we are about halfway through the season and there has still not been even one hurricane?"
Not to defend them but don't the majority of the Hurricanes come in the end of the season. Warmer water and all that...
"16 researchers who wanted to amass snowfall data going back 50 years to the International Geophysical Year (IGY)."
My physics prof recomended me to Cal Tech to go on that expedition but luckly I was edged out by a guy that was a ham operator.
Looking back 50 years i'm thankful that I took up racing and hot rodding instead of being a ham!
I have always questioned why only the Arctic is used to support the lie of global warming and not the Antarctic. The reason why has now been aired. We can now await Al Gore's sequel. I imagine his title would be something like "Down Under, But Not Out".
Robert Kennedy Jr is especially loathsome.
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