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I didnt even mention CO2. The sun could account for the fluctuations in temperature. I do support that idea.
The following article represents an alternative view and analysis of global climate change, which challenges the dominant Global Warming Consensus.
Global Research does not necessarily endorse the proposition of “Global Cooling”, nor does it accept at face value the Consensus on Global Warming. Our purpose is to encourage a more balanced debate on the topic of global climate change.
Despite no global warming in 10 years and recording setting cold in 2007-2008, the Intergovernmental Panel on Climatic Change (IPCC) and computer modelers who believe that CO2 is the cause of global warming still predict the Earth is in store for catastrophic warming in this century. IPCC computer models have predicted global warming of 1° F per decade and 5-6° C (10-11° F) by 2100 (Fig. 1), which would cause global catastrophe with ramifications for human life, natural habitat, energy and water resources, and food production. All of this is predicated on the assumption that global warming is caused by increasing atmospheric CO2 and that CO2 will continue to rise rapidly.
However, records of past climate changes suggest an altogether different scenario for the 21st century. Rather than drastic global warming at a rate of 0.5 ° C (1° F) per decade, historic records of past natural cycles suggest global cooling for the first several decades of the 21st century to about 2030, followed by global warming from about 2030 to about 2060, and renewed global cooling from 2060 to 2090 (Easterbrook, D.J., 2005, 2006a, b, 2007, 2008a, b); Easterbrook and Kovanen, 2000, 2001). Climatic fluctuations over the past several hundred years suggest ~30 year climatic cycles of global warming and cooling, on a general rising trend from the Little Ice Age.
PREDICTIONS BASED ON PAST CLIMATE PATTERNS
Global climate changes have been far more intense (12 to 20 times as intense in some cases) than the global warming of the past century, and they took place in as little as 20–100 years. Global warming of the past century (0.8° C) is virtually insignificant when compared to the magnitude of at least 10 global climate changes in the past 15,000 years. None of these sudden global climate changes could possibly have been caused by human CO2 input to the atmosphere because they all took place long before anthropogenic CO2 emissions began. The cause of the ten earlier ‘natural’ climate changes was most likely the same as the cause of global warming from 1977 to 1998.
Figure 3. Alternating warm and cool cycles since 1470 AD. Blue = cool, red = warm. Based on oxygen isotope ratios from the GISP2 Greenland ice core.
Relationships between glacial fluctuations, the Pacific Decadal Oscillation, and global climate change.
After several decades of studying alpine glacier fluctuations in the North Cascade Range, my research showed a distinct pattern of glacial advances and retreats (the Glacial Decadal Oscillation, GDO) that correlated well with climate records. In 1992, Mantua published the Pacific Decadal Oscillation curve showing warming and cooling of the Pacific Ocean that correlated remarkably well with glacial fluctuations. Both the GDA and the PDO matched global temperature records and were obviously related (Fig. 4). All but the latest 30 years of changes occurred prior to significant CO2 emissions so they were clearly unrelated to atmospheric CO2.
Interesting. How does solar energy affect climate if it doesn't affect temperatures?
Also surface temperature has little to do with climate change IMO. It is a product of how much energy is present on earth from our source, the sun.
Higher energy. Can you define that?
More energy means higher energy.
Another question. Isn'ts science about making predictions based on a theory and seeing if those predictions are valid?
Its better for a theory to be proven first (or at least as much as possible) and then for what is learned to be used for predictions.
Interesting. How does solar energy affect climate if it doesn't affect temperatures?
Higher energy.
Another question (sorry, I know I'm not at your level). It's science about making predictions based on a theory and seeing if those predictions are valid?
I told you that data is available.
Measuring the temperature wouldn't be as effective as measuring the sun's output is all.
I know. That was a leftover from the prior mixup. I fixed it.
You dont have to be rude. I wasnt mocking you sir.
Predictions of expected observations are a requirement of defining a theory. Without predictions you have a hypothesis, not a theory.
Predictions CAN be used to test a theory though they are not conclusive since you have to first rule out EVERY other factor and first KNOW what they are to do so.
2006,Phenomenological Solar Contribution To The 1900-2000 Global Surface Warming,Geophysical Research Letters,Scafetta| N; West| Bj,4,1
Category
2,Impacts
3,Mitigation
4,Methods
5,Paleoclimate
8,Not climate related
9,Not Peer-Reviewed
10,No Abstract
Endorsement
1,Explicitly endorses and quantifies AGW as 50+%
2,Explicitly endorses but does not quantify or minimise
3,Implicitly endorses AGW without minimising it
4,No Position
5,Implicitly minimizes/rejects AGW
6,Explicitly minimizes/rejects AGW but does not quantify
7,Explicitly minimizes/rejects AGW as less than 50%
Dr. Scafetta, your paper 'Phenomenological solar contribution to the 1900–2000 global surface warming' is categorized by Cook et al. (2013) as; "Explicitly endorses and quantifies AGW as 50+%"
Is this an accurate representation of your paper?
Scafetta: "Cook et al. (2013) is based on a strawman argument because it does not correctly define the IPCC AGW theory, which is NOT that human emissions have contributed 50%+ of the global warming since 1900 but that almost 90-100% of the observed global warming was induced by human emission.
What my papers say is that the IPCC view is erroneous because about 40-70% of the global warming observed from 1900 to 2000 was induced by the sun. This implies that the true climate sensitivity to CO2 doubling is likely around 1.5 C or less, and that the 21st century projections must be reduced by at least a factor of 2 or more. Of that the sun contributed (more or less) as much as the anthropogenic forcings.
The "less" claim is based on alternative solar models (e.g. ACRIM instead of PMOD) and also on the observation that part of the observed global warming might be due to urban heat island effect, and not to CO2.
By using the 50% borderline a lot of so-called "skeptical works" including some of mine are included in their 97%."
Any further comment on the Cook et al. (2013) paper?
Scafetta: "Please note that it is very important to clarify that the AGW advocated by the IPCC has always claimed that 90-100% of the warming observed since 1900 is due to anthropogenic emissions. While critics like me have always claimed that the data would approximately indicate a 50-50 natural-anthropogenic contribution at most.
What it is observed right now is utter dishonesty by the IPCC advocates. Instead of apologizing and honestly acknowledging that the AGW theory as advocated by the IPCC is wrong because based on climate models that poorly reconstruct the solar signature and do not reproduce the natural oscillations of the climate (AMO, PDO, NAO etc.) and honestly acknowledging that the truth, as it is emerging, is closer to what claimed by IPCC critics like me since 2005, these people are trying to get the credit.
They are gradually engaging into a metamorphosis process to save face.
Now they are misleadingly claiming that what they have always claimed was that AGW is quantified as 50+% of the total warming, so that once it will be clearer that AGW can only at most be quantified as 50% (without the "+") of the total warming, they will still claim that they were sufficiently correct.
And in this way they will get the credit that they do not merit, and continue in defaming critics like me that actually demonstrated such a fact since 2005/2006."
So in that sense, there is no doubt it is a money grab, to claim otherwise is being ignorant in my opinion.