By Andy May “Consensus” scientists do not believe that solar variability, internal climate variability (in this model simplified to the ~67-year stadium wave), or volcanism influence net global warming or climate change since 1750, yet considerable evidence exists that these factors have an impact. I’ve previously built a model of the HadCRUT5 global average temperatureContinue reading “Natural Climate Change Factors”
Category Archives: Solar variability
The Solar Cycles: A New Physical Model
By Andy May Dr. Frank Stefani and colleagues from Helmholtz-Zentrum Dresden – Rossendorf and the Institute for Numerical Modelling, University of Latvia, have proposed a new physically consistent model of solar variability. It proposes that the known solar cycles, from the eleven-year Schwabe cycle to the 193-year De Vries cycle are related to planetary orbitsContinue reading “The Solar Cycles: A New Physical Model”
Share this:
Hurricane Frequency and Sunspots
By Andy May Today, Roger Pielke Jr. posted a plot of the 3-year frequency of global major hurricanes (he uses a simple count of them) created by Ryan Maue (@RyanMaue). Dr. Maue also posted this plot on his twitter feed here. I noticed it looked like an inverse sunspot plot and overlaid the SILSO monthlyContinue reading “Hurricane Frequency and Sunspots”
Share this:
Climate, CO2, and the Sun
By Andy May Christian Freuer has translated this post into German here. In my previous post on multiple regression of known solar cycles versus HadCRUT5, I simply threw the solar cycles, ENSO, and sunspots into the regression blender and compared the result to various models that included CO2. Before reading this post, it is aContinue reading “Climate, CO2, and the Sun”
Share this:
Understanding the role of the sun in climate change
By Nicola Scafetta Although the sun provides nearly all the energy needed to warm the planet, its contribution to climate change remains widely questioned. Many empirically based studies claim that it has a significant effect on climate, while others (often based on computer global climate simulations) claim that it has a small effect.
Share this:
Solar Activity: Cycle 25 Surpasses Cycle 24
By Javier Vinós Over the past two decades, solar activity has been characterized by an extended solar minimum spanning two solar cycles, known as the Clilverd Minimum. This phenomenon is currently affecting the climate, but before we can understand its impact, we must address the significant discrepancy between the solar effects observed in paleoclimate proxyContinue reading “Solar Activity: Cycle 25 Surpasses Cycle 24”
Share this:
It is Time to Bury the Grand Solar Minimum Myth
This post has been translated to German by Christian Freuer here. By Javier Vinós Fourteen years ago, a new climate myth was born. A grand solar minimum (GSM) was in the making that would not only reverse global warming but plunge the planet into a new Little Ice Age, surprising the warming alarmists and causingContinue reading “It is Time to Bury the Grand Solar Minimum Myth”
Share this:
The Sun-Climate Effect: The Winter Gatekeeper Hypothesis (II). Solar activity unexplained/ignored effects on climate
by Javier Vinós & Andy May “The complicated pattern of sun-weather relationships undoubtedly needs much further clarification, but progress in this field will be hindered if the view prevails that such relationships should not be taken seriously simply because the mechanisms involved in explaining them are not yet identified.” Joe W. King (1975) For thoseContinue reading “The Sun-Climate Effect: The Winter Gatekeeper Hypothesis (II). Solar activity unexplained/ignored effects on climate“
Share this:
The Sun-Climate Effect: The Winter Gatekeeper Hypothesis (I). The search for a solar signal
by Javier Vinós & Andy May “Probably no subfield of meteorology has had as much effort devoted to it as the effects of solar variability on weather and climate. And none has had as little to show for the research labor.” Helmut E. Landsberg (1982) For those that prefer it, Christian Freuer has translated thisContinue reading “The Sun-Climate Effect: The Winter Gatekeeper Hypothesis (I). The search for a solar signal”
Share this:
Can we predict long-term solar variability?
By Andy May This post is a result of an online conversation with Dr. Leif Svalgaard, a research physicist at Stanford University. Leif knows a great deal about the Sun and solar variability and can explain it clearly. Our disagreement is over whether long-term solar variations could be large enough to affect Earth’s climate moreContinue reading “Can we predict long-term solar variability?”
