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Post by trbixler on Aug 22, 2013 2:38:07 GMT
I guess the IPCC has been following this thread but somehow have missed the point as it is natural variation. "Separating Science From Spin on the Global-Warming 'Pause'" "The IPCC report attributes this hiatus to short-term factors that result in temporary cooling periods, including volcanoes, solar cycles, absorbent oceans, non-greenhouse-gas pollutants, and a string of other temporary-yet-powerful natural forces. Blame the volcanoes While greenhouse gases are trapping heat, volcanoes are doing their best to block it out. Volcanic eruptions send large quantities of sulfur dioxide into the stratosphere, a slice of Earth's atmosphere that begins about eight miles above the earth's surface. These emissions—known as volcanic aerosols—block the sun's light and heat from reaching the lower atmosphere and heating the planet. The aerosols do not stay in the stratosphere permanently, but they can linger for years. And depending on the frequency and size of volcanic eruptions over a given period, the aerosols' concentration in the atmosphere waxes and wanes. In eras of increasing concentrations, the aerosols form a more effective heat shield around the planet and temporarily work against global warming." link
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Post by trbixler on Nov 17, 2013 21:58:57 GMT
So I wonder if they had a thermometer in the throat of the volcano so they could get unprecedented warming. Although I still cannot figure out how the CO2 got down there to cause all the core of the earth to heat so much. "Volcano discovery hints at fire below ice in Antarctica" "A volcano may be stirring more than a half-mile beneath a major ice sheet in Antarctica, raising the possibility of faster base melting that could ultimately affect climate. Seismologists working in a mountainous area of Marie Byrd Land in western Antarctica detected a swarm of low-magnitude earthquakes in 2010 and 2011 similar to those that can precede volcanic eruptions, according to a study published online Sunday in Nature Geoscience. The area of activity lies close to the youngest in a chain of volcanoes that formed over several million years, and the characteristics and depth of the seismic events are consistent with those found in volcanic areas of Alaska’a Aleutian Islands, the Pacific Northest, Hawaii and Mt. Pinatubo in the Philippines, the study concludes. The tight focus of the 1,370 tremors and their deep, long-period waves helped researchers rule out ice quakes, glacial motion or tectonic activity as causes. So, too, did their apparent depth: At 15-25 miles beneath the sub-glacial surface, they are close to the local boundary between Earth’s crust and mantle." link
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Post by sigurdur on Nov 17, 2013 23:57:45 GMT
Something to watch TR.
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Post by cuttydyer on Nov 18, 2013 9:19:05 GMT
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Post by cuttydyer on Nov 28, 2013 9:22:31 GMT
This situation is not going to help the climate scientists find all that missing heat: Lisa Mahapatra reports: The volcano at Mount Sinabung at Jakarta, Indonesia, erupted six times early Monday, shooting volcanic ash 2,000 meters into the sky. Thousands have been evacuated from the region since the Sinabung volcano began erupting sporadically in September. 5,000 people were evacuated from the area the day before the eruption on Monday, bringing the total number of evacuees to 11,000. There have been no casualties so far. The Sinabung is just one of 35 active, erupting volcanoes in the world, according to a categorized list on Volcano Discovery. Of the 35 currently erupting volcanoes in the world, seven are in Indonesia. Most of Indonesia is situated along the “Ring of Fire” -- a horseshoe shaped ring around the Pacific where most earthquakes and volcanic eruptions take place. Here’s a map of the Ring of Fire and the 35 volcanoes that are experiencing sporadic eruptions and other active volcanic activity. Link: www.ibtimes.com/volcano-indonesia-one-35-currently-erupting-volcanoes-heres-where-they-are-map-1486866Link to the Smithsonian Institution: volcano.si.edu/
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Post by nautonnier on Nov 29, 2013 14:10:58 GMT
I think volcanic dust needs to be ejected further than the low troposphere to have a climate impact. If we get a large eruption with dust up to 20,000 meters (the likely height of the tropopause at Indonesia) then the entire 'pause' in world temperatures will be blamed on it by proponents of AGW clutching at straws.
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Post by trbixler on Dec 14, 2013 15:47:13 GMT
Well this could cause some slight weather change. "Beneath Yellowstone, a volcano that could wipe out U.S." "A team from the University of Utah have told the American Geophysical Union Fall Meeting in San Francisco that Yellowstone’s magama chamber is 2.5 times larger than previously thought. It is an underground cavern measuring some 55 miles by 20 miles and containing between 125 and 185 billion cubic miles of molten rock. If it blows it will wipe out America – and have enormous impacts on the rest of the world." link
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Post by trbixler on Feb 25, 2014 0:46:26 GMT
Those Volcanoes are at it again. How could this happen again to us? I mean at a solar minimum again. I tell you my CO2 blanket needs just a little adjustment and we will be OK. "Study: Volcanoes contribute to recent warming ‘hiatus’" link
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Post by sigurdur on Feb 25, 2014 22:14:08 GMT
Yellowstone will blow again. Not if but when. I hope it is many generations away from doing that.
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Post by douglavers on Feb 26, 2014 5:02:50 GMT
"More than 76,000 people fled their homes and flights were grounded across most of Indonesia’s densely populated island of Java on Friday after a volcanic eruption sent a huge plume of ash and sand 17 km (10 miles) into the air. Euronews 14th Feb 2014"
Nautonnier, was that high enough?
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