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Re: News Advisory: Still Crazy After Oil These Years!
In <4u9bh7$aas@james.freenet.hamilton.on.ca>
af329@james.freenet.hamilton.on.ca (Scott Nudds) writes:
David Beorn wrote:
>: Where is the hue
>: and cry about the ice age that "was" coming 20 years ago???
>There was no such "cry". You are living a fantasy. Please provide
>references to an abundance of scientific articles proclaiming an
>impending ice age.
>I have seen dozens of people making the same claim as you. None have
>been able to support their fantasy. I doubt that you will be any
>different.
My Dear Mr. Nudds,
I'm amazed that no one provides you with references when you request
them. After reading your statement: "You express opinion without
evidence. Faith. Faith in your ignorance of the subject. If you have
some evidence of a process at work that is increasing temperatures,
then present it." I am sure you make no statements without adequate
references.
I trust you are familiar with the concept that Canada and much of the
northern U.S. and Northern Europe underwent glaciation at least four
times during the Pleistocene? If not, you may want to review an
introductory geology text such as _Earth_ by Frank Press and Raymond
Seiver. People have been studying the reasons for ice ages since Louis
Agassiz recognized continental glaciations.
A good introductory text on future ice ages would be _Ice Ages: Solving
the Mystery_ (Imbrie and Imbrie, 1979, Enslow Publishers Hillshire,
NJ). John Imbrie was one of the principal scientists in the CLIMAP
group. Imbrie and Imbrie trace the hypothesized causes of glaciations
from Croll to Milankovitch and detail much of the work that was done in
the 1970s which lend credence to the orbital forcing hypothesis. In
brief, changes in the Earth's eccentricity, tilt, and precession have
different cycles. When these cycles coincide in certain ways ice ages
are hypothesized to occur. There is much paleoclimatic evidence which
supports this hypothesis (and some recent evidence which doesn't; e.g.,
Devils Hole calcite formation).
When these cycles are projected into the future, they indicate that the
same orbital conditions which were extant during the ice ages will
occur again. This will not happen tommorrow, but the time frame is
brief when considering geologic time. Imbrie and Imbrie do not
discount anthropogenic influences; even back in 1979 they considered
the idea of a "Carbon Dioxide Induced Super-Interglacial" that would
over time cycle into a renewed glacial age due to orbital forcing over
the next 25,000 years (see their figure 48). For some strange reason
immediate global warming gets more press and attention than an ice age
in 5,000 to 10,000 years.
Listed below are an abundance of recent references on the Milankovitch
hypothesis (pro and con). There is also a wealth of info on the net;
search on "Milankovitch." Thus, I hope you will not believe that
anyone is shielding this important information from you.
Regards,
August Matthusen
AUTHOR(s): Shapiro, Ledley T.
Chu, S.
TITLE(s): The initiation of ice sheet growth, Milankovitch solar
radiation variations, and the 100 ky ice age cycle.
In: Climate dynamics.
SEP 01 1995 v 11 n 7
Page: 439
AUTHOR(s): Crowley, T. J.
Kim, K. Y.
TITLE(s): Milankovitch Forcing of the Last Interglacial Sea Level.
In: Science.
SEP 09 1994 v 265 n 5178
Page: 1566
AUTHOR(s): Hagelberg, Teresa K.
Bond, Gerard
deMenocal, Peter
TITLE(s): Milankovitch band forcing of sub-Milankovitch climate
variability during the Pleistocene.
In: Paleoceanography.
AUG 01 1994 v 9 n 4
Page: 545
AUTHOR(s): Imbrie, J.
Mix, A. C.
Martinson, D. G.
TITLE(s): Milankovitch theory viewed from Devils Hole.
In: Nature.
JUN 10 1993 363 n 6429
Page: 531
AUTHOR(s): Imbrie, J.
Boyle, E.A.
Clemens, S.C.
TITLE(s): On the Structure and Origin of Major Glaciation Cycles, 1,
Linear Responses to Milankovitch Forcing.
In: Paleoceanography.
DEC 01 1992 v 7 n 6
Page: 701
AUTHOR(s): Imbrie, John
TITLE(s): Editorial: A Good Year for Milankovitch.
In: Paleoceanography.
DEC 01 1992 v 7 n 6
Page: 687
AUTHOR(s): Winograd, I.J.
Szabo, B.J.
Coplen, T.B.
TITLE(s): A 250,000-Year Climatic Record from Great Basin Vein
Calcite. Implications for Milankovitch Theory.
In: Science.
DEC 02 1988 v 242 n 4883
Page: 1275
AUTHOR(s): Short, David A.
Mengel, John G.
Crowley, Thomas J.
TITLE(s): Filtering of Milankovitch Cycles by Earth's Geography.
In: Quaternary research.
MAR 01 1991 v 35 n 2
Page: 157
AUTHOR(s): Crowley, Thomas J.
TITLE(s): Are There Any Satisfactory Geologic Analogs for a Future
Greenhouse Warming?
In: Journal of climate.
NOV 01 1990 v 3 n 11
Page: 1282
AUTHOR(s): Crowley, Thomas J.
Kim, Kwang-Yul
TITLE(s): Comparison of proxy records of climate change and solar
forcing.
In: Geophysical research letters. .
FEB 15 1996 v 23 n 4
Page: 359
AUTHOR(s): Crowley, Thomas J.
Kim, Kwang-Yul
TITLE(s): Comparison of long-term greehouse projections with the
geologic record.
In: Geophysical research letters. .
APR 15 1995 v 22 n 8
Page: 933
AUTHOR(s): Crowley, Thomas J.
Baum, Steven K.
TITLE(s): Reconciling Late Ordovician (440 Ma) glaciation with very
high (14X) CO2 levels.
In: Journal of geophysical research. Atmospheres :
JAN 20 1995 v 100 n 1
Page: 1093
AUTHOR(s): Crowley, Thomas J.
TITLE(s): Potential reconciliation of Devils Hole and deep-sea
Pleistocene chronologies.
In: Paleoceanography.
FEB 01 1994 v 9 n 1
Page: 1
AUTHOR(s): Crowley, Thomas J.
Kim, Kwang-Yul
TITLE(s): Complementary Roles of Orbital Insolation and North
Atlantic Deep Water During Late Pleistocene Interglacials.
In: Paleoceanography.
OCT 01 1992 v 7 n 5
Page: 521
References: