Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Dry lake reveals evidence of Southwestern ‘megadroughts’
Los Alamos National Laboratory ^ | February 28, 2011 | Unknown

Posted on 02/28/2011 5:16:59 PM PST by decimon

Cooling trend could be on the way unless thwarted by greenhouse gasses

LOS ALAMOS, New Mexico, February 28, 2011—There’s an old saying that if you don't like the weather in New Mexico, wait five minutes. Maybe it should be amended to 10,000 years, according to new research.

In a letter published recently in the journal Nature, Los Alamos National Laboratory researchers and an international team of scientists report that the Southwest region of the United States undergoes "megadroughts"—warmer, more arid periods lasting hundreds of years or longer. More significantly, a portion of the research indicates that an ancient period of warming may be analogous to natural present-day climate conditions. If so, a cooler, wetter period may be in store for the region, unless it is thwarted by increased concentrations of greenhouse gasses in the atmosphere that could warm the planet.

Using a long core of sediments obtained in 2004 from beneath a dry lakebed located on the Valles Caldera National Preserve—an 86,000-acre grassland located on the site of a dormant prehistoric volcano about 20 miles west of Los Alamos—the researchers were able to peer back in time into the climate as it existed between 360,000 and 550,000 years ago. Layers in the 260-foot-long sediment core were easily distinguishable, and were bounded by distinct layers of volcanic ash that allowed for very accurate dating. Researchers looked at chemical constituents trapped within the layers as well as plant and pollen debris to characterize the climate conditions of the time.

The sediment layers from beneath the South Mountain Lake covered two "interglacial" periods. Such periods are significant because they represent a time between ice ages when warmer temperatures mimicked present-day temperatures.

(Excerpt) Read more at lanl.gov ...


TOPICS: History; Science
KEYWORDS: africa; catastrophism; drought; egypt; globalwarming; godsgravesglyphs; greenhousegas; megadroughts
Can't tell now if warming is bad or good.
1 posted on 02/28/2011 5:17:04 PM PST by decimon
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv; steelyourfaith

Sere in mind ping.


2 posted on 02/28/2011 5:17:59 PM PST by decimon
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon

Either way, we can’t affect it, so we’ll have to do what animals on this planet have done throughout history: Adapt to it...


3 posted on 02/28/2011 5:22:42 PM PST by piytar (Obastard is a use of the term "bastard" in the literal sense -- Obama is hiding his daddy's identity)
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon; rdl6989; marvlus; Fractal Trader; Whenifhow; grey_whiskers; proud_yank; markomalley; ...
Thanx decimon ! LOL. Very puuny. ;-)

 




Beam me to Planet Gore !

4 posted on 02/28/2011 5:25:29 PM PST by steelyourfaith ("Eternal vigilance is the price of liberty." -- Wendell Phillips)
[ Post Reply | Private Reply | To 2 | View Replies]

To: decimon

So the take-away from this article is....?

We could see... unless... expect... although....

Can I get paid to do reports like that?


5 posted on 02/28/2011 5:29:23 PM PST by broadway
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon; StayAt HomeMother; Ernest_at_the_Beach; 1010RD; 21twelve; 24Karet; 2ndDivisionVet; ...

· GGG managers are SunkenCiv, StayAt HomeMother, and Ernest_at_the_Beach ·
· join list or digest · view topics · view or post blog · bookmark · post a topic · subscribe ·

 
 Antiquity Journal
 & archive
 Archaeologica
 Archaeology
 Archaeology Channel
 BAR
 Bronze Age Forum
 Discover
 Dogpile
 Eurekalert
 Google
 LiveScience
 Mirabilis.ca
 Nat Geographic
 PhysOrg
 Science Daily
 Science News
 Texas AM
 Yahoo
 Excerpt, or Link only?
 


Thanks decimon. I think should just get my troublemaking out of the way right off.

Thanks Fred Nerks for this link: To all -- please ping me to other topics which are appropriate for the GGG list.
 

· History topic · history keyword · archaeology keyword · paleontology keyword ·
· Science topic · science keyword · Books/Literature topic · pages keyword ·


6 posted on 02/28/2011 5:30:24 PM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
[ Post Reply | Private Reply | View Replies]

To: Ernest_at_the_Beach; Rurudyne; steelyourfaith; Tolerance Sucks Rocks; xcamel; 75thOVI; aimhigh; ...

Thanks Fred Nerks for this link: Thanks decimon.
 
Catastrophism
 
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
 

7 posted on 02/28/2011 5:35:15 PM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
[ Post Reply | Private Reply | View Replies]

To: broadway
Can I get paid to do reports like that?

The check is in the mail.

8 posted on 02/28/2011 5:41:35 PM PST by decimon
[ Post Reply | Private Reply | To 5 | View Replies]

To: decimon
Apart from specific core data there's absolutely nothing in this expensive "study" I didn't already know. I studied geology at the U. of New Mexico long ago and my professors were well aware of periodic long-lasting droughts in the southwest. Of course there was none of this greenhouse gas "global warming" bullcrap those days.

There seems to be an enormous knowledge vacuum that started in the 1960s. This is one of any number of "scientific studies" I've read in the past few years that's just a rehash and technical update of long-established data.

9 posted on 02/28/2011 5:45:52 PM PST by Bernard Marx
[ Post Reply | Private Reply | To 1 | View Replies]

To: CedarDave; LegendHasIt; Rogle; leapfrog0202; Santa Fe_Conservative; DesertDreamer; ...

NM Ping. {Here’s hoping for a bit cooler/wetter statewide weather... we could use the water.}


10 posted on 02/28/2011 6:06:42 PM PST by OneWingedShark (Q: Why am I here? A: To do Justly, to love mercy, and to walk humbly with my God.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon
If so, a cooler, wetter period may be in store for the region, unless it is thwarted by increased concentrations of greenhouse gasses in the atmosphere that could warm the planet.

Let's see.
The area undergoes periodic megadroughts.
Every several thousand years or so. Followed by cooler, wetter periods.
BUT.

This time, the cooler, wetter period... ...unless it is thwarted by increased concentrations of greenhouse gasses in the atmosphere that could warm the planet.

Wow. Is this science or the the drug addled dream of the hysterical climate fakes pretending to be "scientists?" Again?

What would cause their dreaded Thwart? This time?
Why, the implied voodoo AGW, of course. The earth can't possibly be generating these cycles all by itself.

Their models, none of which have ever been right... written by morons who know even less about statistics and programming than they appear to know about climate. That's where they get their neurotic "predictions." OOooops. A thousand pardons; Since they have always been wrong, The IPCC no longer is allowed to call them predictions
They are now "extrapolations!"

But they are just as wrong!

Why don't we just take those computers away from the frauds? Apes playing with high tech with very big mouths and absolutely, positively no advancement to any known science. All they have managed to do after thirty years is discover a method of generating lots of heat with absolutely no light!

Delusional morons, no longer even familiar with the word "credibility."

11 posted on 02/28/2011 6:06:53 PM PST by Publius6961 (There has Never been a "Tax On The Rich" that has not reached the middle class)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Publius6961
Cause? Quiet, we wouldn’t want to mention that because we don't have a clue. Oh but ask us about gas and we will give you loads of it.
12 posted on 02/28/2011 6:18:33 PM PST by Domangart
[ Post Reply | Private Reply | To 11 | View Replies]

To: decimon; SunkenCiv
Calico: A 200,000-Year Old Site In The Americas?
13 posted on 02/28/2011 6:22:24 PM PST by blam
[ Post Reply | Private Reply | To 1 | View Replies]

To: Publius6961

Do any of them even hint at evidence that this is not just another interglacial warm period?


14 posted on 02/28/2011 6:22:56 PM PST by Lucius Cornelius Sulla (Colin Firth Rules!)
[ Post Reply | Private Reply | To 11 | View Replies]

To: blam

Your respondents in that thread may be Calico people. Most of ‘em are extinct.


15 posted on 02/28/2011 6:35:02 PM PST by decimon
[ Post Reply | Private Reply | To 13 | View Replies]

To: decimon

“There’s an old saying that if you don’t like the weather in New Mexico, wait five minutes.”

They’ve had that same saying everywhere I have ever lived.


16 posted on 02/28/2011 6:35:55 PM PST by AndrewB (FUBO)
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon
"Your respondents in that thread may be Calico people. Most of ‘em are extinct."

Yup. Just viewing the poster names in some of these old threads is entertaining, eh?

17 posted on 02/28/2011 6:39:57 PM PST by blam
[ Post Reply | Private Reply | To 15 | View Replies]

To: Publius6961
... unless it is thwarted by increased concentrations of greenhouse gasses in the atmosphere that could warm the planet.

It must be a government rule that any "scientific" document or report put out by any agency receiving federal funds must qualify the results with the above absurd statement.

Some day that will be laughed at just as we today laugh at those publishing in Galileo's time were required to adhere to the church's line that every astronomical observation somehow had to be explained in terms of the sun revolving around the earth.

18 posted on 02/28/2011 6:42:11 PM PST by CedarDave (Global warming is to today's science as was the sun moving around the earth in Galileo's time)
[ Post Reply | Private Reply | To 11 | View Replies]

To: broadway

You’ve summed up science reporting incredibly well.


19 posted on 02/28/2011 6:42:46 PM PST by ConservativeMind ("Humane" = "Don't pen up pets or eat meat, but allow infanticide, abortion, and euthanasia.")
[ Post Reply | Private Reply | To 5 | View Replies]

To: Lucius Cornelius Sulla
Do any of them even hint at evidence that this is not just another interglacial warm period?

Of course not, because nobody may ever know. The only thing we know for certain is what has happened in the past.

And that the cause of the dozens of previous extremes and reversals cannot have been, under any circumstances, anthropogenic global warming. That has already happened and is really beyond debate. The Goron and pals, please take note.

20 posted on 02/28/2011 6:43:53 PM PST by Publius6961 (There has Never been a "Tax On The Rich" that has not reached the middle class)
[ Post Reply | Private Reply | To 14 | View Replies]

To: blam

Where have all the FReepers gone,
long time posting.


21 posted on 02/28/2011 6:49:34 PM PST by decimon
[ Post Reply | Private Reply | To 17 | View Replies]

To: Bernard Marx

Do you mean to say that dry lake beds indicate a lack of rain?


22 posted on 02/28/2011 7:01:41 PM PST by Cvengr (Adversity in life and death is inevitable. Thru faith in Christ, stress is optional.)
[ Post Reply | Private Reply | To 9 | View Replies]

To: decimon
More significantly, a portion of the research indicates that an ancient period of warming may be analogous to natural present-day climate conditions... Must have been caused by all the SUVs they were driving back then.... ;-)
23 posted on 02/28/2011 7:37:17 PM PST by DeoVindiceSicSemperTyrannis (Want to make $$$? It's easy! Use FR to pimp your blog!!!)
[ Post Reply | Private Reply | To 1 | View Replies]

Evolution in Your Face
by Patrick Huyghe
Omni
Lake Victoria, Africa's largest lake, is home to more than 300 species of cichlids. These fish, which are popular in aquariums, are deep-bodied and have one nostril, rather than the usual two, on each side of the head. Seismic profiles and cores of the lake taken by a team headed by Thomas C. Johnson of the University of Minnesota, reveal that the lake dried up completely about 12,400 years ago. This means that the rate of speciation of cichlid fishes has been extremely rapid: something on average of one new species every 40 years!

24 posted on 02/28/2011 7:39:41 PM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
[ Post Reply | Private Reply | View Replies]

To: Bernard Marx
They have a dirt core and it apparently validated earlier studies.

Nothing wrong with that.

Let's hope they get their quick and dirty stuff out of the way and then carefully put it away where it's safe.

Future technology will make it possible to check through it to find DNA so we can identify the presence of various species.

25 posted on 02/28/2011 7:50:16 PM PST by muawiyah (Make America Safe For Americans)
[ Post Reply | Private Reply | To 9 | View Replies]

To: muawiyah
They have a dirt core and it apparently validated earlier studies.

Please direct me to where they credit any previous studies. It's announced like the discovery of the Millennium.

We already can identify the presence of various species through stratigraphic fossil correlation and pollen/spore studies, etc. I'm not against using better technology to examine old data but the young Turks should not take credit for previous work. Also this seems to be a another AGW ploy posing as "objective science."

26 posted on 02/28/2011 9:44:55 PM PST by Bernard Marx
[ Post Reply | Private Reply | To 25 | View Replies]

To: Cvengr
Do you mean to say that dry lake beds indicate a lack of rain?

Cute. I mean to say that currently populated areas -- the Los Angeles Basin, Las Vegas, Phoenix and the rest of the Southwest -- are subject to severe periodic 200 to 1,000-year or longer droughts, not the brief alternating dry and wet spells of historical record. That knowledge has been around for generations. These guys give the impression they discovered it. It's nice they added a few new data points but the references to AGW make me think their "study" is not the least bit objective.

27 posted on 02/28/2011 10:06:23 PM PST by Bernard Marx
[ Post Reply | Private Reply | To 22 | View Replies]

To: decimon

Visited here a few years back. One of the most unusual and interesting place we’ve ever been.

So many vestiges of the past with an advanced nuclear research facility in the middle.


28 posted on 03/01/2011 4:24:14 AM PST by wolfcreek (http://www.youtube.com/watch?v=Lsd7DGqVSIc)
[ Post Reply | Private Reply | To 1 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson