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The big picture: 65 million years of temperature swings
JoNova ^ | February 18th, 2010 | Joanne

Posted on 02/26/2010 10:45:29 PM PST by Ernest_at_the_Beach

************************************

Greenland Temperatures - last 10,000 years

Greenland Temperatures - last 10,000 years. Are we headed for an ice age? (See below for more detail.)

David Lappi is a geologist from Alaska who has sent in a set of beautiful graphs–including an especially prosaic one of the last 10,000 years in Greenland–that he put together himself (and which I’ve copied here at the top).

If you wonder where today’s temperature fits in with the grand scheme of time on Earth since the dinosaurs were wiped out, here’s the history. We start with the whole 65 million years, then zoom in, and zoom in again to the last 12,000 from both ends of the world. What’s obvious is that in terms of homo sapiens history, things are warm now (because we’re not in an ice age). But, in terms of homo sapiens civilization, things are cooler than usual, and appear to be cooling.

Then again, since T-rex & Co. vanished, it’s been one long slide down the thermometer, and our current “record heatwave” is far cooler than normal. The dinosaurs would have scoffed at us: “What? You think this is warm?”

With so much volatility in the graphs, anyone could play “pick a trend” and depending on which dot you start from, you can get any trend you want. — Jo

**********************************************************

GUEST POST by David Lappi

65 million years of cooling

The following two graphs (images created by Robert A. Rohde / Global Warming Art) are climate records based on oxygen isotope thermometry of deep-ocean sediment cores from many parts of the world [1]).  On both graphs, colder temperatures are toward the bottom, and warmer temperatures toward the top. Significant temperature events on the first graph show the start and end of Antarctic glaciation 34 and 25 million years ago, and the resumption of glaciation about 13 million years ago. It is obvious from the graph that we are now living in the coldest period of Earth’s history for the last 65 million years. Despite recent rumors of global warming, we are actually in a deep freeze.

65 million years of global temperatures

65 million years of global temperatures Image created by Robert A. Rohde / Global Warming Art

Image created by Robert A. Rohde / Global Warming Art

5 million years of cooling

The last five million years of climate change is shown in the next graph based on work by  Lisiecki and Raymo  in 2005 [2] . It shows our planet has a dynamic temperature history, and over the last three million years, we have had a continuous series of ice ages (now about 90,000 years each) and interglacial warm periods (about 10,000 years each). There are 13 (count ‘em) ice ages on a 100,000 year cycle (from 1.25 million years ago to the present, and 33 ice ages on a 41,000 year cycle (between 2.6 million and 1.25 million years ago). Since Earth is on a multi-million-year cooling trend, we are currently lucky to be living during an interglacial warm period, but we are at the end of our normal 10,000 year warm interglacial period.

65 million years of global temperatures

65 million years of global temperatures

Image created by Robert A. Rohde / Global Warming Art

The last 10 millenia

To detail the more recent prehistoric temperature changes, scientists have drilled a number of ice cores in ancient glacial ice.  Paleotemperature data from ice cores is considered to be our best continuous record of temperatures on the planet for time-spans up to about 420,000 years ago.  Annual layering in undisturbed glacial ice allows us to precisely date the layers, and gives us a very accurate time and temperature sequence. The US government drilled the GISP 2  ice core in central Greenland over a five-year period, and the data is available here.  This data set is useful because it reports temperatures (measured by oxygen isotopes) every 10 to 60 years — a good resolution.  I sometimes see graphs of ice-core temperatures or greenhouse gasses that are based on measurements every 1,000 or 2,000 years: not nearly of close enough together for comparisons that are useful today. I downloaded and graphed these data in Excel myself. The following graphs have a time scale in years Before Present (BP).

The next graph of temperature from the ice core for the last 10,000 years (the current interglacial period) shows that Greenland is now colder than for most of that period (vertical scale in degrees C below zero). We can see the Medieval Warm Period  800 to 1,000 years ago was not particularly warm, and the Little Ice Age 150 to 650 years ago was one of the longest sustained cold periods during this interglacial. We are now recovering from this abnormal cold period, and the recovery started long before anthropogenic greenhouse gases were produced in any quantity. The curved  trend line in green shows that we have been experiencing declining temperatures for the past 3,000 years, and are likely to be heading down toward the next ice age. Temperatures are only considered to be increasing if viewed for the last 150 years, from 1850 onward, which is roughly when thermometers began collecting global data, and is also the period of time the UN’s Intergovernmental Panel on Climate Change (IPCC) has chosen for its review. The red portion of the curve is the recovery from the Little Ice Age. The amount of 20th century warming is unknown, since it was recently revealed that unknown portions of the international temperature databases have been tampered with, and the amount and extent of the tampering has not been publicly documented. It is likely that some warming has continued into the 20th century, but it is also likely that the amount of warming is not as great as the 0.6 degrees C that the global warming advocates would lead us to believe.

Our current warming is well within natural variation, and in view of the general decline in temperatures during the last half of this interglacial, is probably beneficial for mankind and most plants and animals. The graph clearly shows the Minoan Warming (about 3200 years ago), the Roman Warming (about 2000 years ago), and the Medieval Warm Period (about 900 years ago). Great advances in government, art, architecture, and science were made during these warmer times.


TOPICS: History; Weather
KEYWORDS: agw; agwglobalwarming; amazongate; carbontrade; catastrophism; climatechange; climatechangedata; czechgate; glaciergate; globalwarming; globalwarminghoax; globalwarmingscandal; globqalwarminghoax; godsgravesglyphs; ipcc; pachauri; pachaurigate; scandinaviagate
This is an EXCERPT

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1 posted on 02/26/2010 10:45:29 PM PST by Ernest_at_the_Beach
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To: SunkenCiv; Marine_Uncle; Fred Nerks; steelyourfaith; NormsRevenge; onyx; BOBTHENAILER; ...

fyi


2 posted on 02/26/2010 10:48:12 PM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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To: Ernest_at_the_Beach
It is obvious from the graph that we are now living in the coldest period of Earth’s history for the last 65 million years. Despite recent rumors of global warming, we are actually in a deep freeze.

Leave it to the Liberals to decry a small step toward normalcy as evil.

3 posted on 02/26/2010 10:52:43 PM PST by Smokin' Joe (How often God must weep at humans' folly. Stand fast. God knows what He is doing.)
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To: Ernest_at_the_Beach

I’m getting a chill just reading this thing.


4 posted on 02/26/2010 10:54:29 PM PST by SatinDoll (NO Foreign Nationals as our President!!)
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To: SatinDoll
Here is another Web Site:

Not by Fire but by Ice
THE NEXT ICE AGE - NOW!

5 posted on 02/26/2010 10:56:38 PM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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To: All
From the above Web Site:

It's a cycle, it's a cycle, it's a cycle!

********************

A True Inquiry Into Climate & Weather, Part 1: A Hot Potato

Humans have nothing to do with it
 

page delimiter


3 Nov 09 - Listen to this eye-opening interview with author Robert Felix,
climatologist Dr. Timothy Ball and meteorologist Joe D’Aleo on
"It's Rainmaking Time! with Kim Greenhouse"


Listen free:
http://itsrainmakingtime.com/2009/climate-part1/
(When you get there, click on the words "Click here to stream")


About the participants
 

Dr. Timothy Ball is a renowned environmental consultant and retired climatology professor at the University of Winnipeg. Dr. Ball has a B.A. from the University of Winnipeg, an M.A. from the University of Manitoba in 1970 in Geography, and a Ph.D. in climatology from the University of London, England.
 

Joseph D’Aleo, executive director of http://icecap.us, was the first Director of Meteorology at the cable TV Weather Channel. A former college professor of meteorology, D’Aleo has served as a member and then chairman of the American Meteorological Society’ Committee on Weather Analysis and Forecasting, and has co-chaired national conferences for both the American Meteorological Society and the National Weather Association.
 

Robert W. Felix, author of two internationally acclaimed science books - Not by Fire but by Ice and Magnetic Reversals and Evolutionary Leaps - is the host and creator of www.iceagenow.com and www.evolutionaryleaps.com. He has given more than 300 radio interviews in the U.S. and Canada presenting his view that the next ice age could begin any day.


Kim Greenhouse is host and creator of www.itsrainmakingtime.com. Kim is a communications steward, pioneer, and rainmaker for a better world who loves to bring new knowledge and unique opportunities to those who are ready, willing, and receptive.

        Thanks, Kim, for the huge amount of work that you've put into this, not
        only for conducting the interview, but for all of your homework and for
        taking the time to read both of my books prior to the interview. If only
        other hosts were that conscientious.

                                                         * * *

Hi Robert, Tim, Joe,

WOW!! Have sat through your two-hour radio interview, WOW!!!!!

What a fantastic mega-bullet to the climate alarmists, jeez, how can anyone still accept that man is affecting the climate is way beyond me.

Also superb to hear you guys cover the global governance issue, the one and only true driver that makes sense, after all is said and done.

Thank you, thank you, thank you, all three of you, for your superb effort.

How can we collectively stop this insane official behaviour?!

Who has the power to prick the man-made climate-change balloon?

Best regards,
Hans Schreuder
www.nothingtodowithco2.com/pdf/AGW_presentation_ILMCD.pdf

6 posted on 02/26/2010 11:01:15 PM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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To: Ernest_at_the_Beach

lol at 65 million


7 posted on 02/26/2010 11:05:34 PM PST by remaxagnt (`)
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To: All
Burt Rutan calls Anthropogenic Global Warming (AGW) a Fraud

****************************EXCERPT******************************

Something seriously wrong

1 Jan 10 - (Excerpts) - "Few significant products are driven to commercialism, validated by claims of the scientific community.  Before investing in a new product, those committing funds almost always look to an Engineering Study or Engineering Design Review, rather than using only the claims of Scientists.  This is not being done at all, with the AGW-planet crisis issue.

"One has only to look at the two most notable charts (below) from two United Nations IPCC summary reports, published a decade apart, to realize that something might be seriously wrong. 
 

Picture 1

Estimated average global temperatures for the last thousand years


"The fact that the 2001 “hockey stick” chart was presented in color in several sections of the 2001 IPCC report, without explaining how the scientists managed to completely eliminate their earlier depiction of the Medieval Warm Period and the Little Ice Age (both are well covered in historical documents as well as scientific analysis is unacceptable behavior.
(http://www.co2science.org/data/mwp/mwpp.php)

"Noting that the “hockey stick” chart was removed in later editions of the IPCC “scientific” reports supports the conclusion that something is indeed wrong.  It was removed because an outside investigation was conducted that resembled a proper engineering review - with a finding of fraud. 

"Specifically, the fraud was identified by showing that the critical data for the chart came from cherry picking just a handful of Siberian trees (tree ring proxy to estimate temperature), without evidence that the researcher applied the proper scientific method.  Using all the data or any random selection of 10% of the tree ring data showed no significant correlation of planet warming to human CO2 emissions.

Fraud not limited to cherry picking

"The fraud was not limited to the tree cherry picking.  The computer code for presentation had been tweaked such that a hockey stick shape is produced even if the data set is developed with a random number generator! 

"The horrific result of this scandal was that the 2001 UN hockey stick chart formed the very foundation of a non-scientific theory that resulted in the awarding of a Nobel Peace Prize, a movie Oscar and a best-selling book.

8 posted on 02/26/2010 11:09:39 PM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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To: All
Also:

John Coleman's Global Warming Special Now on YouTube

Link to IceAgeNow with several choices there

9 posted on 02/26/2010 11:18:41 PM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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To: SatinDoll
We are warming up slightly...:

Graphic from the article:

The big picture: 65 million years of temperature swings

***************************************EXCERPT*****************************


10 posted on 02/26/2010 11:24:39 PM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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To: All; justlittleoleme
Related thread:

U.S. Data Since 1895 Fail To Show Warming Trend

11 posted on 02/26/2010 11:33:28 PM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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To: Ernest_at_the_Beach

bump


12 posted on 02/26/2010 11:37:38 PM PST by GeronL (Political Philosophy: I Own Me (yep, boiled down to 6 letters))
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To: ETL; neverdem; Carry_Okie; Southack

ping


13 posted on 02/26/2010 11:38:11 PM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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To: Ernest_at_the_Beach

Indeed, a glaciation is probable to happen in a period extending to the next ten thousand years, and the fact is that Earth is cooling right now.

Glaciation would be more destructive than the damage any global warming theory predicted, could you imagine Manhattan buried in mile and a half of ice?


14 posted on 02/26/2010 11:41:52 PM PST by J Aguilar (Fiat Justitia et ruat coelum)
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To: Ernest_at_the_Beach

Indeed, a glaciation is probable to happen in a period extending to the next ten thousand years, and the fact is that Earth is cooling right now.

Glaciation would be more destructive than the damage any global warming theory predicted, could you imagine Manhattan buried in mile and a half of ice?


15 posted on 02/26/2010 11:41:52 PM PST by J Aguilar (Fiat Justitia et ruat coelum)
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To: Ernest_at_the_Beach

bttt


16 posted on 02/26/2010 11:53:43 PM PST by Hypo
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To: J Aguilar
Let's hope we have a few thousand years before that is a possibility...

Nite all!

17 posted on 02/27/2010 12:01:46 AM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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Comment #18 Removed by Moderator

To: J Aguilar; Hypo; sarahross777

Was just on the Earthquake thread....8.8 off coast of Chile...that is Huge.


19 posted on 02/27/2010 12:24:39 AM PST by Ernest_at_the_Beach ( Support Geert Wilders)
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To: Ernest_at_the_Beach

Great posting! Bookmarked.


20 posted on 02/27/2010 12:32:10 AM PST by TigersEye (It's the Marxism, stupid! ... And they call themselves Progressives.)
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To: Ernest_at_the_Beach; marvlus; TenthAmendmentChampion; Carlucci; proud_yank; meyer; Horusra; ...
Thanx !

 




Beam me to Planet Gore !

21 posted on 02/27/2010 3:30:31 AM PST by steelyourfaith (Warmists as "traffic light" apocalyptics: "Greens too yellow to admit they're really Reds."-Monckton)
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To: Ernest_at_the_Beach

But around 65 million years ago there were massive outpourings of lava in India (see Deccan Traps). And very high CO2 levels, many times higher than today. Also the KT (”dinosaur killer”) asteroid impact occurred around that time, which also may have contributed large amounts of CO2 to the atmosphere. Again, much higher levels than we have today.

______________________________

“Greenhouse Crisis. [due to KT asteroid impact, ~65 million years ago -etl] Impact with the carbonate-rich rocks of the Gulf coast releases large amounts of CO2, initiating a greenhouse warming. Note that this would offset the proposed impact winter effects [’soot’, etc, blocking sunlight -etl].”

http://taggart.glg.msu.edu/isb200/kt.htm

______________________________

“The Deccan Traps formed between 60 and 68 million years ago,[2] at the end of the Cretaceous period. The bulk of the volcanic eruption occurred at the Western Ghats (near Mumbai) some 66 million years ago. This series of eruptions may have lasted fewer than 30,000 years in total.[3] The gases released in the process may have played a role in the Cretaceous–Tertiary extinction event, which included the extinction of the non-avian dinosaurs.”

http://en.wikipedia.org/wiki/Deccan_Traps#History

______________________________

“The Deccan volcanism, at 64-65 Ma: The second event of this phase is the Deccan volcanism which occurred after a hiatus of 30 Ma. Also, after exactly the same hiatus, and at the same time of 64-65 Ma, the Indian plate experienced breakup from yet another partner at Gondwanaland time – the Seychelles. This probably indicates that the second stage of magmatism, which began at 93 Ma, was controlled by the breakup events between Gondwanaland microplates and the Indian plate. Also, it shows that the breakup process was a gradual and progressive phenomenon, starting with Madagascar-India separation and, after another 30 My, Seychelles-India separation. Since this process controlled West Coast magmatism, which tectonism is expected to do, we deduce that the magmatism was also progressive. Thus, we conclude that (i) the rhyolitic volcanism at 93 Ma resulted from Madagascar-India breakup, and (ii) that this breakup event was a continuous process which led to Seychelles-India breakup after another 30 My and to Deccan volcanism at the same time. The progressive chemical trend of the volcanics, i.e., from rhyolite to basalt, indicates gradual progressive increase in temperature and/or gradual progressive lowering of the liquidus in the magma chamber as a result of gradual progressive rifting/breakup of the Indian plate with Madagascar and the Seychelles respectively.

The shift from plutonism during first phase to volcanism during the second phase perhaps indicates the presence of direct, uninterrupted conduits from the magma chamber to the surface of the continental crust during the second phase. This is what is expected during extensive rifting events such as Madagascar-India and Seychelles-India separation which did not occur during the first phase.

The large volume of the Deccan volcanics and the high rate of volcanism during the Deccan episode indicate:

1. higher rate of adiabatic decompression due to continental scale rifting,

2. consequently, higher rate of melting of magma in the chamber,

3. further, continental delamination of the western continental crust due to elevation in temperature and decrease in viscosity caused by the presence of a heat source in the form of a magma chamber at its base, and

4. a direct plumbing system between the melt and the surface, during eruption.

Considering that the West Coast and Narmada-Tapi rift zones were reactivated at the time of Deccan volcanism and the Cambay and Kutch rifts were also available as direct conduits for the upward movement of melt, we infer that the presence of these four rifts and geophysical evidence of lithosphere thinning beneath the westen coast explains the size, volume and eruption rate of the Deccan volcanics.

The geochemical variation within the Deccan volcanics, as mentioned above, perhaps indicates differences in the chemistry of the host rocks. For example, along the Narmada-Tapi rift zone the magmatic melt must have interacted with the host sediments, which are Mahakoshal Jurassics along with Archean metamorphics. Similarly along the West Coast, Cambay and Kutch rifts, the melt would have interacted with Archean-Precambrian metamorphics. Consequential changes in the chemistry would be reflected in the geochemistry of the DVP volcanics.”

http://www.mantleplumes.org/Deccan2.html


22 posted on 02/27/2010 5:55:06 AM PST by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; BBell; ...
Thanks Ernest_at_the_Beach!
 
Catastrophism
 
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
 

23 posted on 02/27/2010 6:47:55 AM PST by SunkenCiv (Freedom is Priceless.)
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To: Ernest_at_the_Beach; StayAt HomeMother; 1ofmanyfree; 21twelve; 240B; 24Karet; 2ndDivisionVet; ...

· join list or digest · view topics · view or post blog · bookmark · post a topic · subscribe ·

 
Gods
Graves
Glyphs
Thanks Ernest_at_the_Beach.

To all -- please ping me to other topics which are appropriate for the GGG list.
GGG managers are SunkenCiv, StayAt HomeMother, and Ernest_at_the_Beach
 

·Dogpile · Archaeologica · LiveScience · Archaeology · Biblical Archaeology Society ·
· Discover · Nat Geographic · Texas AM Anthro News · Yahoo Anthro & Archaeo · Google ·
· The Archaeology Channel · Excerpt, or Link only? · cgk's list of ping lists ·


24 posted on 02/27/2010 6:48:31 AM PST by SunkenCiv (Freedom is Priceless.)
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To: Ernest_at_the_Beach
'Are we headed for an ice age?'

Simple answer, YES.

I'm a 'science junky'. It prolly has something to do with my profession where I work with the Laws of Physics everyday and 'a' + 'b' always = 'c', and 'X' x 'Y' always = 'Z'. And no guessing or 'computer modeling' is required to 'prove' that E=mc2 works every time.

And as a science junky, in my spare time I watch the Science Channel like addicts chase their next fix. And the 'SC" has numerous series on the Earth and our Climate. They're directly related, climate specific, or as a byproduct of some series on our Solar System and/or Cosmology.

Long story short;

We are coming OUT of a naturally occurring warming period, and entering a naturally occurring Cooling Period. These cyles have repeated and repeated since our present Earth, ver 2.0, was created along with the moon approx 4.5 Billion years ago.

During this time we've even had periods called 'Ice Ball Earth' where the Earth was like one 'HUGH' snowball. Every spot, even at the equator, was covered in snow or ice. Scientists (real ones /s), know of one period of Ice Ball Earth' for positive and there's evidence that it may have happened twice.

So. Are we headed for an ice age? You betcha(1). Unfortunately these Real Scientists can't predict when, as in how soon, it will happen.

(1) Al Gore, please pick up the Red Courtesy Phone.

25 posted on 02/27/2010 7:30:00 AM PST by Condor51 (The difference between stupidity and genius is that genius has its limits [A. Einstein])
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To: Smokin' Joe
Leave it to the Liberals to decry a small step toward normalcy as evil.

Ding! Ding! Ding! We have the winning post of the day.

Everybody back away from your keyboards, and try again tomorrow...

26 posted on 02/27/2010 7:47:13 AM PST by null and void (We are now in day 401 of our national holiday from reality. - 0bama really isn't one of US.)
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To: Ernest_at_the_Beach

I popped my head out the door about an hour ago. Still damn cold out there. Nice graphs. I book marked the GISP2 site for later investigation.


27 posted on 02/27/2010 11:24:01 AM PST by Marine_Uncle (Honor must be earned....)
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To: onyx; Ernest_at_the_Beach

Placemark


28 posted on 02/27/2010 12:31:57 PM PST by onyx (BE A MONTHLY DONOR - I AM)
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To: Condor51

There is a place in northwest Oregon called Mist. Very, very small town; outside of town is an Elk Preserve. My reason for mentioning this place is the seashells preserved in the ground thereabouts, exposed in stream beds due to erosion.

Eight thousand years ago an arm of the sea reached far inland at that locale. During that time the sea level along the Oregon coast was 15 feet higher than it is today. Fifteen thousand years ago the sea level was much lower than today; in fact, you would have to go about 24-26 miles further west of the present coastline to reach the Ice Age coastline (15,000 before present) of Oregon.

Yes, it is getting colder.


29 posted on 02/27/2010 12:56:40 PM PST by SatinDoll (NO Foreign Nationals as our President!!)
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To: Ernest_at_the_Beach

btt


30 posted on 02/27/2010 2:24:07 PM PST by beebuster2000
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To: Ernest_at_the_Beach

65 million? Me thinks there are a few too many zeroes in that numbah. How about 6,500 years, the age of God’s Earth


31 posted on 02/27/2010 2:26:06 PM PST by Revolting cat! (Let us prey!)
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To: J Aguilar; Ernest_at_the_Beach
Glaciation would be more destructive than the damage any global warming theory predicted, could you imagine Manhattan buried in mile and a half of ice?

Imagine all of the corruption that would be dead and buried too! I hope it gets down to D.C. We need a shot at a do over, IMHO.

32 posted on 02/27/2010 3:53:48 PM PST by neverdem (Xin loi minh oi)
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To: Ernest_at_the_Beach

Thanks for digging that up.
33 posted on 02/27/2010 3:56:17 PM PST by neverdem (Xin loi minh oi)
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To: Revolting cat!
How about 6,500 years, the age of God’s Earth.

And you are correct because......

34 posted on 02/27/2010 3:57:22 PM PST by verity (Obama Lies)
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To: verity

You’re right, thank you for the correction, I appreciate it. God’s Earth is only 6,013 years old (as of last October.)


35 posted on 02/27/2010 6:00:55 PM PST by Revolting cat! (Let us prey!)
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To: Ernest_at_the_Beach
Let's hope we have a few thousand years before that is a possibility..

We may not:

Big Freeze Plunged Europe Into Ice Age in Months

36 posted on 03/07/2010 1:48:21 PM PST by El Gato ("The second amendment is the reset button of the US constitution"-Doug McKay)
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To: Ernest_at_the_Beach

Greenland GISP2 Ice Core -Last 10,000 Years
What is the relevance of the years listed before present,
they are unevenly spaced.


37 posted on 05/26/2013 7:48:57 AM PDT by Peter E.E.
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