Archive for the ‘Ice ages’ Category

Pierre L. Gosselin provides an English overview of a video presentation in German given by Dr. Sebastian Lüning, a geologist and co-author of the book “The Neglected Sun

This is a geological context that unfortunately is lost on many people like physicists who believe their formulae more than they believe the true facts.

Pierre mentions “All graphics cropped from Lüning’s presentation with permission.” so I won’t copy them here.

http://notrickszone.com/2014/06/29/german-geologist-ipcc-models-a-failure-have-no-chance-of-success-sees-possible-0-2c-of-cooling-by-2020

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A few years ago, I started a wikipedia page on the Gore Effect; the uncanny phenomenon which unleashes snow, hail, torrential rain, icy winds and sleet on the venues where Al Gore is speaking about global warming. The instances are too numerous to list. My page got deleted within a few months by the usual suspects. But it was reborn when another wiki user put up a much more detailed and better referenced version, and I thought it unassailable. But no, the usual suspects are at it again:

gore-effect

Maybe big Al has been armtwisting Jimmy Wales with the promise of a big donation on condition it goes. Who knows.

Contributor ‘Aussie’ notes this morning that the Gore Effect continues undiminished:

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I’m of the opinion that before getting into the complexity of numerical modelling, it’s wise to put considerable effort into trying to understand the physical processes at work in the climate system, and the origins of the energy flows that drive them. David Evans’ recent series of posts over at Jo Nova’s site have generated a lot of interesting discussion (despite being roundly ignored by Anthony Watts at WUWT), and I think we can shed some light on the ‘mysterious 11yr lag’ between solar input and climate response.

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Once again Pierre L. Gosselin brings fascinating content from the German speaking world

Distinct solar imprint on climate What’s more worrisome,

Schlüchter’s findings show that cold periods can strike very rapidly. Near the edge of Mont Miné Glacier his team found huge tree trunks and discovered that they all had died in just a single year. The scientists were stunned.

“The year of death could be determined to be exactly 8195 years before present. The oxygen isotopes in the Greenland ice show there was a marked cooling around 8200.”

That finding, Schlüchter states, confirmed that the sun is the main driver in climate change.

Article “Giant Of Geology/Glaciology Christian Schlüchter Refutes CO2…Feature Interview Throws Climate Science Into Disarray”

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oldbrew:

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A very important topic indeed, thanks to Judith Curry for raising it.

Originally posted on Climate Etc.:

by Judith Curry

 . . . suggesting that Dansgaard-Oeschger events resulted from a combination of the effects of sea ice and ice shelves—structures that help define the margins of ice sheets—to account for both the rapid and the slower parts of the cycle.

View original 1,221 more words

On Saturday My lady and I travelled with friends Ian and Susan down the Scott Polar Research Institute to a talk given by Rich Pancost, the professor at the head of the Cabot Institute at the University of Bristol. This outfit is comprised of a small team which co-ordinates cross disciplinary effort from other faculties at the University to help address the university’s ‘two big themes’ of environment and health.

cabot

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skyfall.fr are one of our sceptical European friends

Image

Figure from paper cited later. If the top trace is correct that is a superb match between insolation (P) and proxy. A lot of reading follows.

Under the title “Lindzen lors de l’audit de l’APS : Milankovitch et l’Arctique”
http://www.skyfall.fr/?p=1280

For anglophones
https://translate.google.com/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.skyfall.fr%2F%3Fp%3D1280&edit-text=

I’ll let skyfall speak and then then link the interesting part.

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A new paper in Astronomy and Astrophysics (A&A) finds that cosmogenic nucleides in a section of Epica dome C covering 325-336 kyrs ago doesn’t exhibit Abreu et al’s planetary periods. They conclude that solar variability might have been different then. They don’t consider that Epica ice cores might not be telling them what they think they’re telling them.

Here’s the abstract

No evidence for planetary influence on solar activity 330 000 years ago

A. Cauquoin1⋆, G. M. Raisbeck2, J. Jouzel1, E. Bard3 and ASTER Team3⋆⋆

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Clive has published an interesting series of articles on his blog. Here is food for thought.

Does the Moon trigger interglacials?
Posted on January 10, 2014 by Clive Best

Why did the last 8 glacial periods only end when the earth’s orbit around the sun reached maximum eccentricity ? This is the real unsolved mystery of the Ice Ages as discussed in previous posts and recently on scienceofdoom.

  1. Phenomenology of Ice Ages
  2. What causes interglacials – part 1
  3. Part 2: The real cause of interglacials – Resonant dust clouds

With the last of these posts I finally thought there could be a solution to this mystery based on resonant interplanetary dust, but alas I could find no evidence whatsoever in TSI data and dismissed the idea. However I now realise that perhaps there is another solution which may have been looking us in the face all the time.

Link to “Does the Moon trigger interglacials?”

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Paul Homewood and I spotted this one coming a number of weeks ago. The mainstream media is now picking up the story. I suggest people consider voting for the only party with a sensible energy policy. This from the Independent:

fuel-povertyCurrently, fuel poverty refers to those households that need to spend more than 10 per cent of their income on fuel “to maintain an adequate level of warmth”. But under the new definition, contained in the Government’s forthcoming Energy Bill, which could be passed by the end of the year, it will apply only to households which need to spend more than average on fuel to keep warm and who would be left with “a residual income below the official poverty line” if they did.

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The Talkshop’s favourite weatherman Paul Hudson has been to see Mike Lockwood. It seems the fragile ‘consensus’ on the inability of solar variation to affect climate is coming apart. Now Lockwood is saying a new Maunder or Dalton type minimum is likely upon us, and could cause a general downturn in climatic conditions. This is what we’ve been telling the mainstream solar science community for the last four years. From Paul’s BBC blog:

hudsonIt’s known by climatologists as the ‘Little Ice Age’, a period in the 1600s when harsh winters across the UK and Europe were often severe.

The severe cold went hand in hand with an exceptionally inactive sun, and was called the Maunder solar minimum.

Now a leading scientist from Reading University has told me that the current rate of decline in solar activity is such that there’s a real risk of seeing a return of such conditions.

I’ve been to see Professor Mike Lockwood to take a look at the work he has been conducting into the possible link between solar activity and climate patterns.

According to Professor Lockwood the late 20th century was a period when the sun was unusually active and a so called ‘grand maximum’ occurred around 1985.

Since then the sun has been getting quieter.
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Slide from Shariv lecture

Slide from Shariv lecture

Prof. Nir J. Shaviv, who is a member of the Racah Institute of Physics in the Hebrew University of Jerusalem. According to PhysicaPlus: “…his research interests cover a wide range of topics in astrophysics, most are related to the application of fluid dynamics, radiation transfer or high energy physics to a wide range of objects – from stars and compact objects to galaxies and the early universe. His studies on the possible relationships between cosmic rays intensity and the Earth’s climate, and the Milky Way’s Spiral Arms and Ice Age Epochs on Earth were widely echoed in the scientific literature, as well as in the general press.” — From Nir’s blog [1]

Nir gave a lecture at EIKE (Europäisches Institut für Klima und Energie [2]) January 2013. In the lecture at EIKE he flows through some of what is wrong with IPCC assertions and models, then drops in extraterrestrial, solar wind, galactic cosmic rays, showing some neat plots. Asserts that solar accounts for a major proportion of whatever temperature change has gone on and how IPCC omit critical factors. Models are over-sensitive.

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uksnowice

From the Talkshop’s favourite weatherman at the BBC Paul Hudson comes news of a possible run of colder weather and climate for the UK. This will be no surprise for talkshop regulars, where we have been predicting a solar slowdown for a few 11y cycles since the blog started in 2009. Nice to get some confirming support from Paul and good to see him sticking his neck out on a 20+ year weather prediction.

NASA last week confirmed their prediction that the current solar cycle 24 is likely to be the weakest since 1906.

Intriguingly, the current solar cycle shows a striking similarity with solar cycle 5 which was also very weak, with the same double peak as the current cycle, and ran from approximately the mid 1790s to around 1810.

Solar cycle 6 was weaker still and stretched from around 1810 to the early 1820s.

Solar cycles 5 and 6 were so unusual that they were named the Dalton solar minimum after meteorologist John Dalton and coincided with a period of increasingly cold winters and poor summers.

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Review: Frozen Annals by Willi Dansgaard

Posted: June 24, 2013 by tchannon in books, climate, Ice ages
Image

Willi Dansgaard with ice core

FROZEN ANNALS
Greenland Ice Cap Research
Willi Dansgaard
124 pages

Dansgaard is the father of radioisotope ice history. This is his story from discovering about rain through to Vostok ice core.

Edited by The Department of Geophysics of
The Niels Bohr Institute for Astronomy, Physics and Geophysics at
The University of Copenhagen, Denmark.

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Image

Illustration from

Duncan Steel: Perihelion precession, polar ice and global warming (PDF).
Journal of Cosmology[1]

I’ve not had a chance to look at this item so I am linking as-is. I’m familiar enough with Berger to know this has real meat behind it. Errors would not surprise me but caveat emptor.

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Earlier today, I spotted the wailing and gnashing of teeth beginning over the fact that the airborne fraction of co2 is about to pass 400 parts per million – 0.04% of the atmosphere. Peter Gleick was one of the protagonists.

So I tweeted this response:
gleick-response

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As the northern melt and polar bear worrying season gets underway, a timely reminder of the repetitive nature of ‘unprecedented’ climate happenings. H/T ‘IluvCO2′

NORTH POLE MELTING. CHANGE OF CLIMATE. MANY GLACIERS VANISHED.
Northern Star (Lismore, NSW : 1876 – 1954) Thursday 5 April 1923

polarbear

Is the North Pole going to melt entirely? Are the Arctic regions warming up with prospect of a great climatic change in that part of the world? Science is asking these questions (says “Popular Science Siftings”). Reports from fishermen, seal hunters, and explorers who sail the seas around Spitsbergen and the Eastern Arctic all point to a radical change in climatic conditions, with hitherto unheard-of high temperatures on that part of the earth’s surface. Observations to that effect have covered the last five years during which the warmth has been steadily increasing. In August the Norwegian Department of Commerce sent an expedition to Spitsbergen and Bear Island under the leadership of Dr. Adolf Hoel, professor of geology in the University of Christiania, the object in view being to survey and chart areas productive of coal and other minerals.

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stognettiFollowing a long period of reflection, or brooding, or something, Post-Normal-Times blogger and environment consultant Sylvia Tognetti has a new year’s resolution to go on the offensive against Post-Normal-Science originator and veteran philosopher of science Jerry Ravetz. Sylvia seems to have come to a judgement that Jerry has abandoned the principles of PNS and ‘gone over to the wrong side’ as a result of being ‘turned’ by the arguments of ‘cranks’, including Judy Curry, and me.  :)

Jerry wrote a letter to Sylvia attempting to mark out his position, but this seems not to have gone down too well.  At least she’s stopped calling us ‘deniers’ after the quiet word I had on her site two years ago this coming week. But she obviously feels that the right way to balance her ‘concession’ on the ‘denier’ labelling issue is by using the ‘crank’ label 10 times in a few paragraphs, while berating Jerry for pointing out the negative consequences of alarmist claims made 12 years ago. It’s a bit of a rant, but not bad as spectator sport. The assembled warmista are trying to damn Ravetz by linking to one of his WUWT articles. For the wider world, the article he co-wrote with Mike Hulme post-climategate is far more important:
‘Show Your Working': What ‘ClimateGate’ means
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Excerpt from an article by London Mayor Boris Johnson on the Telegraph website:

It’s snowing, and it really feels like the start of a mini ice age

Something is up with our winter weather. Could it be the Sun is having a slow patch?
Boris Johnson 20-1-2013

Boris JohnsonI remember snow that used to come and settle for just long enough for a single decent snowball fight before turning to slush; I don’t remember winters like this. Two days ago I was cycling through Trafalgar Square and saw icicles on the traffic lights; and though I am sure plenty of readers will say I am just unobservant, I don’t think I have seen that before. I am all for theories about climate change, and would not for a moment dispute the wisdom or good intentions of the vast majority of scientists.

But I am also an empiricist; and I observe that something appears to be up with our winter weather, and to call it “warming” is obviously to strain the language. I see from the BBC website that there are scientists who say that “global warming” is indeed the cause of the cold and snowy winters we seem to be having. A team of Americans and Chinese experts have postulated that the melting of the Arctic ice means that the whole North Atlantic is being chilled as the floes start to break off — like a Martini refrigerated by ice cubes.

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The Rt. Hon. David Cameron MP
Prime Minister
10 Downing Street
London SW1A 2AA
18th January 2013

AN OPEN LETTER TO THE PRIME MINISTER ABOUT CLIMATE CHANGE AND ENERGY POLICIES

Dear Prime Minister,

Like you I read PPE at Oxford and I was lucky enough to be taught Economics by Professor Wilfred Beckerman. He has an interest in the economics of environmentalism, having worked in that field with the World Bank in the 1960s, advised the Labour Party on it and he was a member of the Royal Commission on Environmental Pollution from 1970 to 1973. He wrote an excellent book in 1974 called “In Defence of Economic Growth” which was a rebuttal of the famous Club of Rome 1972 book “The Limits to Growth”.

In 2002, Prof. Beckerman published a book called “A Poverty of Reason: Economic Growth and Sustainable Development”. If you or your advisers on environmental policies haven’t read it before, I thoroughly recommend it as a succinct and massively sensible analysis of many environmentalists’ arguments by a brilliant economist and excellent teacher. He is still going strong at 87; he’s still teaching at UCL, mainly on ethical issues in Economics which he touches on in this book when addressing the mistakes made by many environmentalists about intergenerational ethics, rights and basic economics when considering issues like resource depletion, climate change and the precautionary principle.

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