Is there a planetary influence on solar activity? It seems so according to this new paper

Guest post by David Archibald   Long suspected, it seems that this has now been confirmed by a paper in Astronomy and Astrophysics with the title “Is there a planetary…

Muscheler retracts? Offers a NEW excuse for why solar activity can't be responsible for post-70's warming

Guest post by Alec Rawls Technically Dr. Muscheler is asking me to retract the title of my post, “Raimund Muscheler says that a steady high level of forcing can’t cause warming“:…

Raimund Muscheler says that a steady high level of forcing can't cause warming

Guest post by Alec Rawls Solar warming and ocean equilibrium, part 4 I emailed Dr. Muscheler about the very strange remarks that were attributed to him in the recently released…

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

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…

Another regime change indication – this time in solar data

Note: See also the 1997 regime change in global climate data by the same method, here I’m happy to report that something I recognized and reported back in 2008 related…

The Sun has changed its character

Guest post by David Archibald A number of solar parameters are weak, and none is weaker than the Ap Index: Figure 1: Ap Index 1932 to 2026 Figure 1 shows…

NASA June 2012 Solar Cycle 24 Prediction

Compiled by Joe D’aleo WeatherBell via NASA MSFC The current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum of about 60 in the Spring of 2013. We…

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

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…

Solar grand minima linked to cooling period in Europe

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…

NASA/Hathaway's updated solar cycle prediction – smallest in 100 years

…the predicted size makes this the smallest sunspot cycle in about 100 years (Updated 2012/05/01) From: http://solarscience.msfc.nasa.gov/predict.shtml The current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum…

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

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…

Back-testing the Solar – Sea Level Relationship

Guest post by David Archibald This is a little bit amusing. In February, I had a post on the solar – sea level relationship which quantified the sea level fall…

New paper in the Journal of Atmospheric and Solar-Terrestrial Physics demonstrates that planets do not cause solar cycles

Planetary effects are too small by several orders of magnitude to be a main cause of the solar cycle. Argiris Diamantis writes in with this tip: Professor Cornelis de Jager…

Scafetta's new paper attempts to link climate cycles to planetary motion

Nicola Scafetta sent me this paper yesterday, and I read it with interest, but I have a number of reservations about it, not the least of which is that it…

Talking about the weather

Harold Ambler needs a bit of a boost,  his book Don’t sell your coat is the American equivalent of Ian Plimers book How to get expelled from school in Australia,…

Another solar study: this one suggests no significant solar influence

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…

New Study Shows A Clear Millennial Solar Impact Throughout Holocene

Key Points High resolution SST and SSS reconstruction off Cape Hatteras Low salinity anomaly (3.5-5.2 ka): absence of Labrador current influence Millenial NAO pattern and solar variability Emphatic Blow To…

The sun is still in a funk: sunspot numbers are dropping when they should be rising

The sunspot number for February from SIDC is down again, to 33.1 Here’s the source of that data: http://sidc.oma.be/DATA/monthssn.dat So far, cycle 24 is significantly lower in SSN number that…

GISS finally concedes a significant role for the sun in climate

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…

Omitted variable fraud: vast evidence for solar climate driver rates one oblique sentence in AR5

Guest post by Alec Rawls “Expert review” of the First Order Draft of AR5 closed on the 10th. Here is the first paragraph of my submitted critique: My training is…

Do Latest Solar Studies Confirm Upcoming Global Cooling?

Guest post by Matti Vooro I fully support the findings of  Jan –Erik Solheim , Kjell Stordahl and Ole Humlum and their very recent paper called The long sunspot cycle…

Quantifying the Solar Cycle 24 Temperature Decline

Guest post by David Archibald Three wise Norwegians – Jan-Erik Solheim, Kjell Stordahl and Ole Humlum – have just published a paper entitled “The long sunspot cycle 23 predicts a…

Interesting presentations from the Nagoya Workshop on the Relationship between Solar Activity and Climate Changes

As the sun goes blank today, just 15 months from the expected Cycle 24 solar maximum, Dr. Leif Svalgaard writes in to advise me of the presentations made in the…

Solar Cycle 24 Length and Its Consequences

Guest post by David Archibald Solar Cycle 24 is now three years old and predictions of the date of solar maximum have settled upon mid-2013. For example, Jan Janssens has…