Tag Archives: Maunder Minimum

Solar Activity – Past, Present, Future

Posted on November 11, 2012 by

Essay/paper by Dr. Leif Svalgaard Abstract As our civilization depends increasingly on space-borne assets and on a delicate and vulnerable earth-bound infrastructure, solar activity and its potential impact becomes of increasing importance and relevance. In his famous paper on the … Continue reading →

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Posted in Science, Solar | Tagged , , , , , , , | 207 Comments

Paper demonstrates solar activity was at a grand maximum in the late 20th century

Posted on September 13, 2012 by

Solar activity measured by isotope proxies revealed the end of 20th century was the highest activity in 1200 years A 2010 paper (that I somehow missed) was recently highlighted by the blog The Hockey Schtick and I thought it worth … Continue reading →

Posted in Solar | Tagged , , , , , | 99 Comments

A response to Dr. Paul Bain’s use of ‘denier’ in the scientific literature

Posted on June 22, 2012 by

Note: This will be the top post for a day or two, new posts will appear below this one. Readers may recall my original post, Nature’s ugly decision: ‘Deniers’ enters the scientific literature. followed by  Dr. Paul Bain Responds to … Continue reading →

Posted in Climate ugliness | Tagged , , , , , , , | 747 Comments

Premonitions of the Fall (in temperature)

Posted on May 20, 2012 by

Guest post by David Archibald The first prediction of the current climatic minimum was made by Hubbert Lamb in 1970 in a report (Weiss and Lamb) for the German Navy. He did it by making a reconstructed record of the … Continue reading →

Posted in Forecasting, Paleoclimatology, Solar | Tagged , , , , , | 198 Comments

Another day, another Central Asian precipitation study finds a link to solar activity

Posted on May 15, 2012 by

From Sun and Liu 2012: all of the deep solar minima of the last millennium (Oort, Wolf, Spörer, Maunder and Dalton) correspond to periods of drought in the Qilian Mountains of the northeastern Tibetan Plateau according to this tree-ring study. … Continue reading →

Posted in Paleoclimatology, Proxies, Solar | Tagged , , , , , , , | 56 Comments

Solar grand minima linked to cooling period in Europe

Posted on May 7, 2012 by

This is interesting. A quick cooling in Europe together with an increase in humidity and particularly in windiness was found to coincide with a long-term reduction in solar activity 2800 years ago during something called the “Homeric minimum”. The paper … Continue reading →

Posted in Paleoclimatology, Solar | Tagged , , , , , , , , | 118 Comments

From Schmidt 2005 to Miller 2012: the “not needed” excuse for omitted variable fraud

Posted on April 29, 2012 by

Guest post by Alec Rawls Miller et al. 2012 recently provided some pretty strong evidence for a solar driver of climate. “This is the first time anyone has clearly identified the specific onset of the cold times marking the start … Continue reading →

Posted in Paleoclimatology | Tagged , , , , , , , | 192 Comments

Astronomers: World may be entering period of global cooling

Posted on April 21, 2012 by

From the National Astronomical Observatory Of Japan (via Dr. Benny Peiser of The GWPF) World May Be Entering Period Of Global Cooling: The sun may be entering a period of reduced activity that could result in lower temperatures on Earth, … Continue reading →

Posted in Science, Solar | Tagged , , , , | 139 Comments

Another solar study: this one suggests no significant solar influence

Posted on March 5, 2012 by

On Saturday I posted about this study from Pierre Gosselin at No Tricks Zone: New Study Shows A Clear Millennial Solar Impact Throughout Holocene Now we have another that suggests little effect. and shows a business as usual projected warming … Continue reading →

Posted in Cosmic rays, Modeling, Solar | Tagged , , , , , , , , | 185 Comments

GISS finally concedes a significant role for the sun in climate

Posted on February 29, 2012 by

UPDATE: The paper itself is available below. There is a new  paper published yesterday in the journal Geophysical Research Letters from NASA GISS/Columbia University and Brown University titled  Hydroclimate of the northeastern United States is highly sensitive to solar forcing … Continue reading →

Posted in Current News, Rainfall | Tagged , , , , , , , | 116 Comments

German skeptics Lüning and Vahrenholt respond to criticism

Posted on February 13, 2012 by

Foreword: Dr Sebastian Lüning and Prof. Fritz Vahrenholt, authors of a new controversial skeptic book now hitting German bookstores, have asked me to post their response to comments made by climate scientist Georg Feulner of the Potsdam Institute for Climate … Continue reading →

Posted in Cosmic rays, Opinion | Tagged , , , , , , , , , , | 201 Comments

New paper suggests sun may be headed for a Maunder minimum

Posted on December 2, 2011 by

Just published in GRL, a new paper by Lockwood et al that suggests the sun may be headed for a Maunder type minimum.: The persistence of solar activity indicators and the descent of the Sun into Maunder Minimum conditions Key … Continue reading →

Posted in Science, Solar | Tagged , , | 189 Comments

Archibald: Solar Based Climate Forecast to 2050

Posted on July 13, 2011 by

Guest post by David Archibald When I started out in climate science in 2005, the climate people ignored the solar physics community. A casual perusal of the literature though indicated that the difference in climate outcome from Dikpati’s (NASA) estimate … Continue reading →

Posted in Forecasting | Tagged , , , | 195 Comments

Study: solar activity lull increases chances of cold UK winters

Posted on July 5, 2011 by

From the Institute of Physics More than 1 in 10 chance of colder UK winters As the Sun enters a period of low solar activity over the next 50 years, new research has calculated the probability of unusually cold winter … Continue reading →

Posted in Solar, Weather | Tagged , , , , , , | 106 Comments

Easterbrook on the potential demise of sunspots

Posted on June 17, 2011 by

THE DEMISE OF SUNSPOTS—DEEP COOLING AHEAD? Don J. Easterbrook, Professor of Geology, Western Washington University, Bellingham, WA The three studies released by NSO’s Solar Synoptic Network this week, predicting the virtual vanishing of sunspots for the next several decades and … Continue reading →

Posted in Science, Solar | Tagged , , , , | 475 Comments

“All three of these lines of research to point to the familiar sunspot cycle shutting down for a while.”

Posted on June 14, 2011 by

I’ve managed to get a copy of the official press release provided by the Southwest Research Institute Planetary Science Directorate to MSM journalists, for today’s stunning AAS announcement and it is reprinted in full here: WHAT’S DOWN WITH THE SUN? … Continue reading →

Posted in Science, Solar | Tagged , , , , , | 461 Comments

Warming 101 primer

Posted on June 6, 2011 by

Submitted by D.B. Stealey This article went viral when it was first published. Well worth reading: “Our planet has been slowly warming since last emerging from the “Little Ice Age” of the 17th century, often associated with the Maunder Minimum. … Continue reading →

Posted in Educational opportunity | Tagged , , , , | 45 Comments

New paleo paper shows solar impact on past temperatures

Posted on March 23, 2011 by

From C3 headlines – Scientists Say Norwegian Sea Research Confirms Large, Robust Solar Impact On Temperatures Read here. Map source here. (click on image to enlarge) There are multiple factors that affect both regional and global temperatures, but the most … Continue reading →

Posted in Paleoclimatology | Tagged , , , | 35 Comments

The minimal solar activity in 2008–2009 and its implications for long‐term climate modeling

Posted on March 19, 2011 by

This is a new paper in Geophysical Research Letters by C. J. Schrijver, W. C. Livingston, T. N. Woods, and R. A. Mewaldt. WUWT readers may recognize Livingston as the creator of one of the datasets we regularly follow graphically … Continue reading →

Posted in Cosmic rays, Science, Solar | Tagged , , , , , , | 204 Comments

NASA Sun Spot Number predictions revised again

Posted on January 18, 2011 by

UPDATE: see my animation of NASA solar forecasts since 2004 below. WUWT Commenter J Gary Fox writes: The solar cycle 24 predicted sunspot maximum has been reduced again – predicted peak down to 59 Max. (1/3/11) http://solarscience.msfc.nasa.gov/predict.shtml “It’s tough to … Continue reading →

Posted in Science, Solar | Tagged , , , , | 187 Comments