Dr. Norman Page believes that natural cycles of 60 and 1,000 years are the principle drivers of Global climate. He has recently published a study relating his beliefs. From that study “The coming cooling: usefully accurate forecasting for policy makers” I will begin with one of his charts:
Here Dr. Page compares forecasts by the IPCC, another forecaster S. Akasofu and his own. The IPCC forecast which you have probably seen many time predicts a global temperature rise of 4C by 2100. Akasofu is much below the IPCC forecast at about 1C by 2100. Page’s forecast is for a reduction in global temperature by the year 2100.
Dr Page’s Abstract to this paper lays out the big picture:
This paper argues that the methods used by the establishment climate science community are not fit for purpose and that a new forecasting paradigm should be adopted. Earth’s climate is the result of resonances and beats between various quasi-cyclic processes of varying wavelengths. It is not possible to forecast the future unless we have a good understanding of where the earth is in time in relation to the current phases of those different interacting natural quasi periodicities. Evidence is presented specifying the timing and amplitude of the natural 60+/- year and, more importantly, 1,000 year periodicities (observed emergent behaviors) that are so obvious in the temperature record. Data related to the solar climate driver is discussed and the solar cycle 22 low in the neutron count (high solar activity) in 1991 is identified as a solar activity millennial peak and correlated with the millennial peak -inversion point – in the RSS temperature trend in about 2004. The cyclic trends are projected forward and predict a probable general temperature decline in the coming decades and centuries. Estimates of the timing and amplitude of the coming cooling are made. If the real climate outcomes follow a trend which approaches the near term forecasts of this working hypothesis, the divergence between the IPCC forecasts and those projected by this paper will be so large by 2021 as to make the current, supposedly actionable, level of confidence in the IPCC forecasts untenable.”
The four basic trends in play here according to Page:
“To summarize, the forecasts which follow rely on four basic working hypotheses. First, the solar millennial activity cycle peaked in 1991+/- as seen in Fig 10 in the Oulu neutron count. Second, the corresponding millennial temperature cycle peaked in the RSS data at about 2004-Fig. 4.Third, the 60 year temperature cycle peaked at about the same time and fourth, Ockham’s razor would suggest that the simplest working hypothesis currently available, based on the weight of all the data, is that the trends from the 990 Millennial peak to the 2004 Millennial cycle peak seen in Figs 3 and 4 will, in general, repeat from 2004 to 3004.”
Those charts are as follows:
Figure 10 has had some enhancements so I am showing you that chart. Note how the cosmic ray theory/clouds cooling are illustrated.
Fig 4. RSS trends showing the millennial cycle temperature peak at about 2003.6 (14)
Figure 4 illustrates the working hypothesis that for this RSS time series the peak of the Millennial cycle, a very important “golden spike”, can be designated at 2003.6.
Fig.3 Reconstruction of the extra-tropical NH mean temperature Christiansen and Ljungqvist 2012. (9) (The red line is the 50 year moving average.)
Good view of the 1000 year cycle that Page refers to.
Dr. Page also predicts the next Little Ice Age will likely occur about 2640+/-
Page’s study is about 15 pages long but is definitely worth your time to read it.