Near where I live in southern Arizona (USA) there are several sites where mammoth remains have been located. These sites are reportedly about 10,000 years old.
The surrounding terrain (topography) is essentially the same as when the mammoth remains were first deposited. There has been some minor flooding and erosion, similar to what is seen from year to year based upon the El Nino weather cycles. But nothing to indicate a major change in climate (at these locations) during the last 10,000 years (or however long the mammoth remains have been there). I don't know much about the subjects of ice ages or mammoth diets, but if an ice age event DID occur at the Arizona mammoth sites, it would appear that it happened before the mammoth deposits. Otherwise, the erosion patterns would have been different that the current process, which has continued unaltered for the last 10,000 years or so. >From my own rather unscientific observations, I haven't seen any geological evidence of marshy swamps or abundant grasslands drying up (or spouting up) in this area during that period. I would suspect that things have been relatively stable (over the long term) for a long time. Given the evidence so far, there is at least a sizeable probability that the global climate will remain stable for many more years. >From what I see on the news, I concentrate my worries upon my children and grandchildren. I cannot even fathom what problems my "great-great-great-great-great-great grandchildren" might have. Bob On Sun, 26 Jan 2003 17:32:15 -0400 "L.D. Best" <[EMAIL PROTECTED]> writes: > I've seen some very interesting work in multiple disciplines that > tends > to make me worry about "global warming" and how it might affect my > great-great-great-great-great-great grandchildren. > > Studies from non-weather people would seem to indicate that the last > era > of "global warming" -- which did such a great job of feeding > Mammoths > with tons of all the lovely warm weather foods found in their > "frozen > beneath the tundra" stomachs -- came right before the last ice age. > > Having a non-scientific creative [i.e. take random facts from > multiple > disciplines and put them together in a way that others have yet to] > mind, I just "realized a theory of my own." > > Ice Ages must be preceeding by major periods of global warming. > > The earth's distance from the sun, axial tilt and rotational period > have > not significantly changed since the last ice age. > > The oceans of the world are what keep the earth relatively warm. > > The "easiest" way to reduce ocean temperatures is to cover a larger > portion of the world's water with ice. > > Sea water doesn't freeze well. > > Sea water with fresh water floating on top of it [yes, that does > happen > routinely ... ask the 'eskimos' about harpooning a seal only to lose > it > because it sinks in the fresh water under the ice and comes to rest > "just out of reach" on top of the saline balance of the sea] can be > more > easily covered with ice. > > The largest source of fresh water on this planet is Antarctica. > > The ice around antarctica is melting and calving HUGE icebergs -- > one at > least is said to be larger than the state of Rhode Island, and > that's > just this year's crop of "calves." > > The more fresh water there is to freeze, the more ice will form. > > It is anybody's guess [actually, if some scientists got together > and > working on designing the right computer programs it could be more > than > a guess] at what point global warming will have diluted the seas > enough, > and enough fresh water flows onto the surface of both the Arctic and > > peri-Antarctic oceans, where the ice will take over because there is > a > build-up of reflective ice which gets greater each century because > of the sun's > energy being reflected back from the ice sheets rather than reaching > the > oceans to maintain a relatively warm global weather pattern. > > Whew!! The "puzzle solving mentality" can sneak up on a person > rather > rapidly, given the opportunity and the right prod!!! > > Now, if any of you know some climatologists or global "weather > studiers" > who could take my theory a few steps further ... please send them > my > theory. Then we can all sit back and wait to see what new thinking > develops in the scientific communities of the world. <G> > -- Arachne V1.71;UE01, NON-COMMERCIAL copy, http://arachne.cz/ > > > ________________________________________________________________ Sign Up for Juno Platinum Internet Access Today Only $9.95 per month! Visit www.juno.com
