J-66 Wrote:
A few months back, I came across a couple of scientific reports about oceanography (of all things) talking abou the worrisome trend of changes in the Gulf Stream and potential impact on other major ocean currents. (see
http://www.whoi.edu/institutes/occi/...uptclimate.htm if you really want to go to bed and not sleep well...) Shortly before that, I chanced upon a fascianting book about El Nino; the ties were scary between the two. Now, I'm wondering... What if the Crisis we face is the predicated "Abrupt Climate Change" that Woods Hole scientists are starting to be worried over? Before dismissingit out of hand, stop for a minute to consider the impact to our society if most of Nothern Europe was under permanent fall/winter conditions, the upper two-thirds of the north American continent turned into a high, dry and cold desert. Would we face a crisis that could threaten our entire existence? Would the society that emerged out of the other side of the crisis be vastly different from anything we've imagined to date? I'd say that "yes" is a conservatively safe answer to both questions. Food for thought at least...
I have been thinking about climate since 1990, when, as part of my Ph.D. work, I took a course in Paleoclimatology. Even then, we were aware that climate is like a quarter spinnng in one of those charity vortexes. Usually changes are in the path and velocityof the quarter, but sometimes something can happen that flips the quarter into an entirely different bowl.
That is what we are talking about here.
The earth's climate has changed abruptly before--such as during the little ice age--which was caused by a change in the flow of the Gulf stream. This had different consequences throughout the northern hemisphere.
However, it did not end civilization or the saeculum. However, certain major global climate changes could be catastrophic to our civilization.
Someone suggested that it could end life on earth. I don't think so. Major extinction events have not done that--and we have had them during the Permian and again at the K-T boundary, for example.
However, if the change causes enough havoc to civilization, we could be looking at the end of saeculum. Strauss and Howe discuss that in Generations. If this were the case, we would be facing a catastrophe, not a crisis.
It really doesn' matter if such abrupt change happens due to human activity, global cycles or a combination of both.