Ice cap thaw may awaken Icelandic volcanoes

By Bob L.
Sat. April 17, 2010

This is getting bull shit more and more every day, every time some thing happens in the world now, the first mouth full of shit that comes rolling out is GLOBAL WARMING, CLIMATE CHANGE, if this is going to be so bad then why did the biggest shit peddler BUY a CONDO right down on the water front in California if this going to be that bad, because all these chicken little’s are going to profit if they can scar people in to thinking that the world is come to and end if you don’t believe in what they are saying. (Known as a SCAM)

What is the next thing they are going to blame climate change on, shitting your pants, passing gas, burping, they are blaming animals, well maybe we should go back in time before any one was here during the ice, who do you blame for the disappearance of the ice age, or all these earth quakes that have been from day one, shall we blame all these chicken little’s who were born after the ICE AGE for all earths problems. I know we should blame the schools for not teaching the difference between natural occurrences from a scam.

People did you not learn any thing in science in school, OH I forgot, you are an over educated collage idiot, or you were a school drop out, this is not the problem, it is just that there are to many followers and not enough leaders who can think for them selves, they only follow every SHIT PEDDLERS (BETTER KNOWN AS A SCAMMER) that comes along. Lets look at it this way people get scammed every day because they can’t think for them selves, NO matter how many times they have been told, they still believe the shit peddler. (SCAMMER)
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By Alister Doyle, Environment Correspondent
Fri Apr 16

OSLO (Reuters) – A thaw of Iceland’s ice caps in coming decades caused by climate change may trigger more volcanic eruptions by removing a vast weight and freeing magma from deep below ground, scientists said on Friday.

They said there was no sign that the current eruption from below the Eyjafjallajokull glacier that has paralysed flights over northern Europe was linked to global warming. The glacier is too small and light to affect local geology.

“Our work suggests that eventually there will be either somewhat larger eruptions or more frequent eruptions in Iceland in coming decades,” said Freysteinn Sigmundsson, a vulcanologist at the University of Iceland.

“Global warming melts ice and this can influence magmatic systems,” he told Reuters. The end of the Ice Age 10,000 years ago coincided with a surge in volcanic activity in Iceland, apparently because huge ice caps thinned and the land rose.

“We believe the reduction of ice has not been important in triggering this latest eruption,” he said of Eyjafjallajokull. “The eruption is happening under a relatively small ice cap.”

Carolina Pagli, a geophysicist at the University of Leeds in England, said there were risks that climate change could also trigger volcanic eruptions or earthquakes in places such as Mount Erebus in Antarctica, the Aleutian islands of Alaska or Patagonia in South America.

MAGMA

“The effects would be biggest with ice-capped volcanoes,” she said. “If you remove a load that is big enough you will also have an effect at depths on magma production.”

She and Sigmundsson wrote a 2008 paper in the scientific journal Geophysical Research Letters about possible links between global warming and Icelandic volcanoes.

That report said that about 10 percent of Iceland’s biggest ice cap, Vatnajokull, has melted since 1890 and the land nearby was rising about 25 millimetres (0.98 inch) a year, bringing shifts in geological stresses.

They estimated that the thaw had led to the formation of 1.4 cubic km (0.3 cubic mile) of magma deep below ground over the past century.

At high pressures such as under an ice cap, they reckon that rocks cannot expand to turn into liquid magma even if they are hot enough. “As the ice melts the rock can melt because the pressure decreases,” she said.

Sigmundsson said that monitoring of the Vatnajokull volcano since 2008 suggested that the 2008 estimate for magma generation was “probably a minimum estimate. It can be somewhat larger.”

He said that melting ice seemed the main way in which climate change, blamed mainly on use of fossil fuels, could have knock-on effects on geology. The U.N. climate panel says that global warming will cause more floods, droughts and rising seas.