Posted on 04/16/2010 7:20:31 PM PDT by NormsRevenge
PARIS (AFP) – Big volcanic eruptions have had a cooling effect on Earth's climate, but the Icelandic event is too small to provide any such respite from manmade global warming, scientists said on Friday.
The benchmark cooling event of the past 20 years was in 1991, when Mount Pinatubo erupted in the Philippines.
It cooled Earth's surface by 0.5 degrees Celsius (0.9 degrees Fahrenheit) over the next year, enough to offset the impact of greenhouse gases from 1991 to 1993.
A smaller cooling episode occurred in 1980, when Mount St. Helens in the US state of Washington blew its top, an event that while impressive disgorged only a tenth of the material of Pinatubo.
The chill comes from a simple formula: The volcano spews out a huge amount of fine volcanic ash and sulphur dioxide, which are transported into the high altitude layer known as the stratosphere.
There, chemistry and physics combine, creating a fine layer of whitish particles that for months or years are blown around the Earth and reflect some of the Sun's rays rather than let the radiation reach the ground.
"Basically, it's like putting a reflector shield over the windscreen of your car -- you're stopping the inside of the atmosphere getting too warm," said Colin Macpherson of Durham University, northeastern England.
.. the eruption at Iceland's Eyjafjallajokull glacier so far was too small, did not have sufficient sulphur content and its plume circulated at too low an altitude to make an impact.
Any effect will be "very insignificant," said Scylla Sillayo of the World Meteorological Organisation (WMO) in Geneva.
"At the moment, we are looking at something that's about 100 times smaller than Mount St. Helen's. .. Kathryn Goodenough of the British Geological Survey (BGS).
(Excerpt) Read more at news.yahoo.com ...
Sounds like perfect timing ;)
But it does give the "warmers" more BS to shovel onto us.
However, Algore opened his big mouth and that hot air cancelled out all cooling from 1992 to 2000.
Ping.
What is Global warming?/s
Volcanic scientists collect samples of ash to send to labs to analyze its content, in eastern Iceland. Scientists said the Eyjafjallajokull eruption could have a regional effect on Europe's climate -- but only provided it went on for a matter of years. (AFP/Omar Oskarsson)
These loonies are hand wringing right now praying that one of the monsters in the Pacific rim doesn’t explode. That would be bad for everyone actually , but it would kill their livliehood of fear mongering the tree huggers.
Someone might want to tell these “scientists” that global warming is the biggest crock of bullsh*t ever dreamed up by the commie maggots.
A church, engulfed in ash from a nearby volcano, is seen near Vik April 16, 2010. A huge ash cloud from an Icelandic volcano spread out across Europe on Friday causing air travel chaos on a scale not seen since the Sept. 11 attacks and costing airlines hundreds of millions of dollars. REUTERS/Ingolfur Juliusson (ICELAND - Tags: DISASTER ENVIRONMENT RELIGION)
Lying through their teeth.
Next winter will be colder than normal.
They just don’t want to derail the Cap and Tax battle in the Senate coming up starting April 26th.
They need to be beaten over their heads with this information—that volcano should be the stake in the heart of this ridiculous legislation.
Let’s hope it drops us a full degree by the time it’s done. That’s enough to delay Lindsay Graham’s CapNTax treason until next year wen we have gained 7 seats in the Senate and he won’t mean shit anymore.
The first sentence has this in it:
“but the Icelandic event is too small to provide any such respite from manmade global warming, scientists said on Friday. “
So i see they start their article already with an unproven
assertion.
That and there hasn’t been any “global warming” for more than 10 years...
Its likely to spew ash for the next several weeks to months. Then what will they say?
They are still sticking to the global warming nonsense??? I guess I have to remember there are still those who think the earth is flat, and the moon landings were staged.
...or not
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