From Townhall Dennis Avery Posted: Aug 07, 2017 10:01 AM Americans have suffered needless climate-related panic for the past 40 years—not realizing that, since 1850, our newspapers have given us a climate scare about every 25 years. And none of them was valid. Fortunately, climate science is now good enough to predict the key abrupt…
From BBC’s Paul Hudson It’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…
Guest essay by David Archibald There is now consensus that the Sun has now entered a quiet period. The first paper from the solar physics community predicting the current quiet period was Schatten and Tobiska’s 2003 paper “Solar Activity Heading for a Maunder Minimum?”. To date, Solar Cycle 24 has shown similar maximum SSN amplitudes…
From the GWPF and Dr. Benny Peiser “Weakest Solar Cycle In Almost 200 Years” The sun is acting bizarrely and scientists have no idea why. Solar activity is in gradual decline, a change from the norm which in the past triggered a 300-year-long mini ice age. We are supposed to be at a peak of…
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 Maunder Minimum, Eddy (1976) introduced the notion that the Sun is a variable star on…
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 mentioning here even if a bit past the publish date. The work by Ilya G.…
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 Critics of Use of “Denier” Term (with thanks to Jo Nova, be sure to bookmark and…
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 average frequency of south-westerly surface winds in England since 1340. Quoting Lamb “We sense a…
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. Guest post by Alec Rawls Like the Central Asian precipitation study that Anthony posted about…
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 published in Nature Geoscience suggests that solar grand minima was the trigger for cooling of…
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 of the Little Ice Age,” said lead author Gifford Miller in January. And the dates?…
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, according to Japanese researchers. Officials of the National Astronomical Observatory of Japan and the Riken…
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 trend. From the: JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 117, D05103, 13 PP., 2012 doi:10.1029/2011JD017013 What…
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 Key Points Holocene northeast US hydrological change is consistent with solar forcing Small changes in…
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 Impact Research in an interview by NTV television. Feulner insists that CO2 plays the major…
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 Points Can we predict the onset of the next grand solar minimum Grand minima can…
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 for Solar Cycle 24 amplitude of 190 and Clilverd’s (British Antarctic Survey) estimate of 42…
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 temperatures occurring in the UK. Last year, the same group of researchers, from the University…
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 the possibility of a solar minimum similar to the Maunder Minimum, came as stunning news.…
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? MAJOR DROP IN SOLAR ACTIVITY PREDICTED A missing jet stream, fading spots, and slower activity…
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. Before that came the “Medieval Warm Period”, in which temperatures were about the same as…
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 important source of long-term temperature change is solar activity. Using data from the Norwegian Sea…
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 on our Solar Data and Images reference page. They reconstruct total solar flux all the…
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 make predictions, especially about the future. Philosopher Y. Berra This will be at the level…
The sun went spotless yesterday, the first time in quite awhile. It seems like a good time to present this analysis from my friend David Archibald. For those not familiar with the Dalton Minimum, here’s some background info from Wiki: The Dalton Minimum was a period of low solar activity, named after the English meteorologist…