The difference in this issue is that you are claiming that you do know why.
Yes....an apparent enhanced greenhouse. There is an obvious imbalance in energy coming in and going out, there is an obvious rise in carbon dioxide, and there is an obvious isotope ratio which unmistakenly points to fossil combustion. When you consider that the oxygen content in the atmosphere is decreasing, this provides more evidence that the product comes from combustion.
This was my answer:And you were unable to answer the question then, just as now.
OK. What's happening now is the interglacial that was edging towards another ice age has been halted by our unintended efforts at increasing the opacity of our atmosphere to infrared radiation.
The preponderance of past periods of glaciation is related directly to what we are doing now. The cycle of glaciations follows the Milankovitch cycles, parameters of Earth's orbit, the precession, obliquity, and eccentricity. The forcing imposed by these changes in our orbit reduces insolation in the Northern Hemisphere. Ice sheets begin to grow, Earth's albedo increases, and so the planet reflects more sunlight, which draws the temperature down further. A negative feedback. There is another feedback. The oceans will absorb more gases as the temperature drops. So again, another negative feedback drops the temperature as greenhouse gases leave the atmosphere (H20, CO2, CH4, NOx).
Now as the glacial cycle moves onwards, the orbital parameters come back towards a positive forcing. As the ice sheets begin to recede, the planet starts to warm up as the albedo decreases. All of those greenhouse gases that were sequestered by cooler temperatures begin to outgas from the ocean. This is another feedback, because as more greenhouse gases enter the atmosphere, they trap more of the outgoing reflected solar radiation.
The so-called lag between temperature and carbon dioxide. In fact this phenomenon was predicted by some eminent climatologists before the data came in which showed that atmospheric carbon dioxide lags the increasing temperature.
Conveniently, you can read that paper here:
http://www.atmos.washington.edu/2003...0_ice-core.pdf
The forcing of the Milankovitch cycles is not large enough to cause these cycles alone. The feedback in the climate system make the cycle of glaciations possible.
We have that retroactive explanation. You just continually refuse to accept any evidence which challenges your view that we can't say anything definitive unless we can tell the entire story, which is absurd.The links you've offered in the past not only offered a speculation and conjecture at best. The fact is, no scientific discipline (or combination thereof) possesses enough understanding to establish nor offer that explanation. If the existing science as you believe it, is capable of providing definitive causation, then it would be child's play to generate that "retroactive" explanation.
See above.So, I'll ask for the third time: Do you have any research that conclusively and definitively explains the global weather patterns (in the context of warming/cooling) as have been experienced over the millenia?
And if you want to see more, then watch this lecture by Richard Alley.
A23A