Quote:
Originally Posted by AstralTraveller
Peter
"From present understanding of the record of the last 150,000 years, at least a few large climate changes certainly occurred on the timescale of individual human lifetimes, the most well-studied and well-established of these being the ending of the Younger Dryas, and various Holocene climate shifts.
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Dave, I discounted the above as Adams et. al. in the same breath point to a lack of record and resolution in the data.
It is not clear to me what they meant by climate change in the above, as the literature elsewhere shows the younger Dryas and Holocene shifts were likely not global in nature and were localized events, but again there is still that lack of global record and data resolution.
However I do take your point that climate change is likely to have occured over several thousand years rather than million and stand corrected.
As for my understanding increasing a three orders of magnitude, is this a bad joke or cheap shot?
That said, if the current change continues unabated, then it will have happened at least one, perhaps 2 orders of magnitude faster than
the most rapid of "natural" events.....which is no doubt to what the IPCC refer and have serious concerns over.