Posted on 03/27/2009 12:54:56 PM PDT by NormsRevenge
WASHINGTON (AFP) – A decrease in airborne dust and volcanic emissions has contributed to warming the North Atlantic Ocean in the past three decades, a study showed.
About 70 percent of the Atlantic's warming since 1980, at an average per-decade rate of a half-degree Fahrenheit (a quarter-degree Celsius), was due to less dust blown from African dust storms or to volcanic eruptions, scientists wrote in the journal Science.
"Volcanoes and dust storms are really important if you want to understand (climatic) changes over long periods of time," said the study's lead author Amato Evan, a researcher with the University of Wisconsin-Madison.
He said airborne particles producing warmer temperatures can also help cause hurricanes, which thrive on warm water.
Evan and his colleagues had previously shown that African dust and other airborne particles can reduce hurricane activity by allowing less sunlight to reach the water and thus cool the sea surface.
Years with low dust activity, such as 2004 and 2005 -- a record-breaking storm year -- have been associated with more frequent storms, the researchers noted.
During their study, the researchers used satellite data of dust and other particles along with existing climate models to calculate how much of the Atlantic warming of the past 26 years was due to changes in tropical volcanic activity.
Major such volcanic eruptions that dimmed sunlight were Mexico's El Chichon in 1982 and Mount Pinatubo in the Philippines in 1991.
Although volcanoes are unpredictable by nature, Evan said newer climate models should at least include dust storms as a factor to predict ocean temperature changes accurately.
(Excerpt) Read more at news.yahoo.com ...
A file NASA image shows Saharan dust streaming off the coast of northwest Africa and sweeping out over the Atlantic Ocean. A decrease in airborne dust and volcanic emissions has contributed to warming the North Atlantic Ocean in the past three decades, a study showed. (AFP/NASA/File)
Better put that new dust tax into affect.
But, but, but.. I thought global warming was caused by SUV’s and fat kids...
This report sort of flys in the face of a recent Gov’t ruling requiring farmers to decrease the amount of dust they produce!
http://www.freerepublic.com/focus/f-news/2196849/posts
I told the Mrs she might wanna reacquaint herself with that sweeper, but does she listen? No...
don’t forget W.
So I guess Hussein will now demand all MLB players slide into first?
No. No. No, You don’t understand. Less dust means higher temperatures and more ammunition for the leftist control freaks to sell the global warming junk science to the sheeple.
Yup.
Perhaps it’s time for YOU to learn how to use it !! Ha!!
Two different targets; the lack of dust allows more sunlight — warming the air and oceans; reducing dust through regulation is to allow us to breathe the hotter air.
These guys have it pegged at 70% natural causes for the 1 degree warming and 30% due to AGW.
And they still haven’t fully analyzed the effects of water vapor and clouds on that 30% that keeps shrinking with each new study not contaminated with the AGW bias so often discernible.
So since dust now decreases global warming, can we get dust credits? If I drive an SUV, but spend a certain amount of time on dirt roads, does that offset my carbon emmisions? What’s the trade ratio? Does this mean we can tax dry states like Utah, Arizona, New Mexico and Texas for their excess dust credits, sell those credits back to the Fed, and pay off the deficit?
A decrease in airborne dust and volcanic emissions has contributed to warming the North Atlantic Ocean in the past three decades
Erm... We've been cooling since 1998.
He said airborne particles producing warmer temperatures *can* also help cause hurricanes, which thrive on warm water.
"Can" doesn't mean "does". Number of hurricanes have been down for the last three decades and 6 out of the last seven; and trending down since the 1900's:
http://farm1.static.flickr.com/28/39118696_ef59d2dc28.jpg
The only thing 'up' is the damage done and not because of the 'strength' of the storms but because the US (and the world in general) is (was) so much wealthier, and in the US, more recently, "wealthier" because we haven't instituted the Kyoto or Kyoto-like protocols for global warming.
In California, Dust is classified as Fugitive PM 10.
We have names, classifications, rules and regulations for everything.
http://www.valleyair.org/busind/comply/PM10/forms/Reg%20VIII%20FPMP%20Template%20Final.pdf
The real joke is, they probably will get away with it.
Mankind needs to increase its production of particulates in the atmosphere to compensate for the natural shortfall. I suggest burning lots of high-sulfur coal.
I take that a Nuclear winger is like a Buffalo wing, but hot enough to glow in the dark?
Or is that just a local term for them in the Oak Ridge area?
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