Earl Evleth wrote:

On 30/04/08 21:46, in article ,
"Ouroboros_Rex" wrote:

"Dr. Don J. Easterbrook, Professor Emeritus
Geology, Western Washington
University, author of 8 books, 150 journal
publications with focus on geomorphology;
glacial geology; Pleistocene geochronology;
environmental and engineering geology."

Hmmm.... should I believe Don or Earl? I think
I'll go with Don.

Excellent choice

Of course. After all, 'Don' is way out of his field of expertise and
lies repeatedly - but that's fine for denialists.


I don't see Easterbrook is carrying any weight in this area, any more
than individuals on this group.

One quote about him is

Easterbrook gave a speech at the 2006 Geological Society of America annual
meeting, in which he stated:`

"If the cycles continue as in the past, the current warm cycle should end
soon and global temperatures should cool slightly until about 2035, then
warm about 0.5° C from ~2035 to ~2065, and cool slightly until 2100. The
total increase in global warming for the century should be ~0.3 ° C,
rather than the catastrophic warming of 3-6° C (4-11° F) predicted by the
IPCC."[3]


***

Precisely, due to man's dumping large amounts of CO2 into the air we are
NOT
in a period where we can anticipate that "cycles (will) continue as in
the
past". Over the long term, if the CO2 had not increased we could indeed
be in a long descent.

But I am unfamiliar with cycles as Easterbrook claims, like
"global temperatures should cool slightly until about 2035, then warm
about 0.5° C from ~2035 to ~2065, and cool slightly until 2100."

It sounds wacky to me, is there any clarification on this claim?

Some time ago, I came across an investigation published in 1975 into the
past 700,000 years climate. According to that, the cooling trend since the
forties would persist until the early 1990s. Thereafter, warming would
continue until about 2050 when global temperatures would be about 0.1C
above the 40s peak. That expected value was passed 25 years ago and we're
now 0.6C beyond that peak.

From the quote you give, Easterbrook is talking about a 60-yr cycle but in
Bozo's it's a 30-yr cycle. Confusing. I can't see any sign of either in the
temperature data for the past 150 years.

"From 1870 to 1900, we had global cooling" according to Easterbrook.
According to the temperature data, the cooling didn't start until about
1880. All I can see is an approximate 20-yr cycle around that period with
temperature troughs in about 1870, 1890, and 1910. Temperatures were higher
at the end of his cooling period than at the start!

--
Graham P Davis, Bracknell, Berks., UK. E-mail: newsman, not newsboy.
"What use is happiness? It can't buy you money." [Chic Murray, 1919-85]