zaphod
Level 3 Rank
Posts: 210
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Post by zaphod on Feb 24, 2014 19:30:34 GMT
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Post by sigurdur on Feb 24, 2014 19:44:01 GMT
Amazing that there was no volcanic activity prior to 2000.
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ant42
Level 3 Rank
Melbourne, Australia
Posts: 129
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Post by ant42 on Feb 25, 2014 10:00:00 GMT
Yes Sigurdur only 2 of the largest in the 20th century.
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Post by Ratty on Feb 25, 2014 11:39:00 GMT
I make that excuse #9.
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Post by missouriboy on Oct 6, 2015 13:39:02 GMT
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Post by nautonnier on May 13, 2016 13:31:47 GMT
A reply to a post in WUWT is interesting in this regard: <<SNIP>> "Where Does the Carbon Dioxide Really Come From?
PLIMER: “Okay, here’s the bombshell. The recent volcanic eruption in Iceland . Since its first spewing of volcanic ash has, in just FOUR DAYS, NEGATED EVERY SINGLE EFFORT you have made in the past five years to control CO2 emissions on our planet – all of you.
Of course, you know about this evil carbon dioxide that we are trying to suppress – it’s that vital chemical compound that every plant requires to live and grow and to synthesize into oxygen for us humans and all animal life.
I know…. it’s very disheartening to realize that all of the carbon emission savings you have accomplished while suffering the inconvenience and expense of driving Prius hybrids, buying fabric grocery bags, sitting up till midnight to finish your kids “The Green Revolution” science project, throwing out all of your non-green cleaning supplies, using only two squares of toilet paper, putting a brick in your toilet tank reservoir, selling your SUV and speedboat, vacationing at home instead of abroad, nearly getting hit every day on your bicycle, replacing all of your 50p light bulbs with £5 light bulbs ….. well, all of those things you have done have all gone down the tubes in just four days."<<SNIP>> See complete reply here:- wattsupwiththat.com/2016/05/12/james-delingpole-climate-views-on-the-virgin-podcast/#comment-2213629 |
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Post by missouriboy on May 29, 2016 14:35:27 GMT
Medieval Irish chronicles record volcanic-induced cold weather
Francis Ludlow, Alexander R Stine, Paul Leahy, Enda Murphy, Paul A Mayewski, David Taylor, James Killen, Michael G L Baillie, Mark Hennessy and Gerard Kiely, Medieval Irish chronicles reveal persistent volcanic forcing of severe winter cold events, 431–1649 CE, Environmental Research Letters, vol. 8, no. 2 (2013) 024035. (Open Access) www.anthrogenica.com/showthread.php?998-Medieval-Irish-chronicles-record-volcanic-induced-cold-weatheriopscience.iop.org/article/10.1088/1748-9326/8/2/024035;jsessionid=AAFB5BA5A70CB2CA512FEA17C4D675C1.c2.iopscience.cld.iop.orgExplosive volcanism resulting in stratospheric injection of sulfate aerosol is a major driver of regional to global climatic variability on interannual and longer timescales. However, much of our knowledge of the climatic impact of volcanism derives from the limited number of eruptions that have occurred in the modern period during which meteorological instrumental records are available. We present a uniquely long historical record of severe short-term cold events from Irish chronicles, 431–1649 CE, and test the association between cold event occurrence and explosive volcanism. Thirty eight (79%) of 48 volcanic events identified in the sulfate deposition record of the Greenland Ice Sheet Project 2 ice-core correspond to 37 (54%) of 69 cold events in this 1219 year period. We show this association to be statistically significant at the 99.7% confidence level, revealing both the consistency of response to explosive volcanism for Ireland's climatically sensitive Northeast Atlantic location and the large proportional contribution of volcanism to historic cold event frequencies here. Our results expose, moreover, the extent to which volcanism has impacted winter-season climate for the region, and can help to further resolve the complex spatial patterns of Northern Hemisphere winter-season cooling versus warming after major eruptions.
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Post by Ratty on May 29, 2016 22:13:23 GMT
99.7% confidence !! I would have rounded that up ....
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Post by missouriboy on May 30, 2016 1:46:37 GMT
99.7% confidence !! I would have rounded that up .... In the 'common vernacular' that equates to 'pretty damn sure'? Until it's not.  |
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Post by nautonnier on May 30, 2016 19:42:15 GMT
So how much confidence is there in the temperature proxies in that record? Is it all based on inverted treemometer readings? When a similar exercise was carried out in WUWT it was not possible to identify the eruptions by looking at the temperature record. Volcanic legends Keep Erupting |
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Post by missouriboy on May 31, 2016 11:55:27 GMT
So how much confidence is there in the temperature proxies in that record? Is it all based on inverted treemometer readings? When a similar exercise was carried out in WUWT it was not possible to identify the eruptions by looking at the temperature record. Volcanic legends Keep Erupting It's discouraging when I have to admit that my sub-conscience gives more credence to the monks than to modern science.  Conscience is an aptitude, faculty, intuition or judgment that assists in distinguishing right from wrong. Conscience is an aptitude, faculty, intuition or judgment that assists in distinguishing the right number. |
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