Posted on 10/03/2008 11:55:57 AM PDT by SunkenCiv
Reconstructing the climate of the past is an important tool for scientists to better understand and predict future climate changes that are the result of the present-day global warming. Although there is still little known about the Earth's tropical and subtropical regions, these regions are thought to play an important role in both the evolution of prehistoric man and global climate changes.
New North African climate reconstructions reveal three 'green Sahara' episodes during which the present-day Sahara Desert was almost completely covered with extensive grasslands, lakes and ponds over the course of the last 120.000 years. The findings of Dr. Rik Tjallingii, Prof. Dr. Martin Claussen and their colleagues will be published in the October issue of Nature Geoscience.
Scientists of the... Center for Marine Environmental Research in Bremen... and the Alfred-Wegener-Institute in Bremerhaven... studied a marine sediment core off the coast of Northwest Africa to find out how the vegetation cover and hydrological cycle of the Sahara and Sahel region changed. The scientists were able to reconstruct the vegetation cover of the last 120.000 years by studying changes in the ratio of wind and river-transported particles found in the core...
The scientists explain these periods by an increase of the precipitation that resulted in a much larger vegetation cover resulting in less wind dust and stronger river activity in the Sahara region...
The computer model simulation shows three periods with an almost completely vegetated Sahara at the same time as seen in the geological record. This supports the interpretation of geologists and, in turn, demonstrates the value of computer model results. Additionally, the computer model indicates that only a small increase in precipitation is sufficient to develop a vegetation cover in the Sahara.
(Excerpt) Read more at sciencedaily.com ...
In Herodotus’ time (2500 years ago), Lake Tritonis remained, greatly shrunk, and existing mostly as marshes.
Scientists Explore Lakefront Property, in the Sahara
The New York Times | January 27, 2004 | Brenda Fowler
Posted on 02/01/2004 1:36:28 PM PST by sarcasm
http://www.freerepublic.com/focus/f-news/1069653/posts
Oldest Jewelry? “Beads” Discovered in African Cave
National Geographic News | April 15, 2004 | Hillary Mayell
Posted on 04/16/2004 8:58:13 AM PDT by balrog666
http://www.freerepublic.com/focus/news/1118872/posts
Prehistoric Desert Town Found In Western Sahara (15,000 Years Old)
Reuters | 8-19-2004 | Reuters
Posted on 08/20/2004 9:10:09 AM PDT by blam
http://www.freerepublic.com/focus/f-news/1195560/posts
Scientists Find Fossil Proof Of Egypt’s Ancient Climate
Washington University At St Louis | 2-2-2005 | Tony Fitzpatrick
Posted on 02/03/2005 11:54:52 PM EST by blam
http://www.freerepublic.com/focus/f-news/1335616/posts
Stone Age Cemetery, Artifacts Unearthed In Sahara
National Geographic | Brian Hanwerk
Posted on 10/23/2005 4:56:10 PM PDT by blam
http://www.freerepublic.com/focus/f-news/1507889/posts
Ancient lakes of the Sahara
Innovations Report | Jan 19, 2006 | University of Reading
Posted on 01/21/2006 7:14:03 AM EST by Tyche
http://www.freerepublic.com/focus/f-news/1562135/posts
Adventurer crosses sands that conquered a king
The Times Online | Jan 28, 2006 | Martin Penner
Posted on 01/27/2006 11:33:56 PM PST by Tyche
http://www.freerepublic.com/focus/f-news/1566712/posts
Huge Crater Found in Egypt - Kebira
Space.com | 3/3/06 | Robert Roy Britt
Posted on 03/03/2006 8:58:45 PM PST by NormsRevenge
http://www.freerepublic.com/focus/f-news/1589775/posts
Egyptologists’ palm nearly extinct.
newscientist | 3 6
Posted on 06/06/2006 8:53:33 AM PDT by S0122017
http://www.freerepublic.com/focus/f-chat/1644323/posts
King Tut’s Necklace Shaped By Fireball
The Australian | 6-26-2006
Posted on 06/26/2006 7:32:58 PM EDT by blam
http://www.freerepublic.com/focus/f-news/1656059/posts
Tut’s gem hints at space impact
bbc | Last Updated: Wednesday, 19 July 2006, 19:09 GMT 20:09 UK
Posted on 07/20/2006 8:48:59 AM EDT by BenLurkin
http://www.freerepublic.com/focus/f-chat/1669079/posts
Sahara Desert Was Once Lush and Populated
LiveScience | 20 July 2006 | Bjorn Carey
Posted on 07/20/2006 3:55:53 PM PDT by Marius3188
http://www.freerepublic.com/focus/f-news/1669466/posts
Exodus From Drying Sahara Gave Rise to Pharaohs, Study Says
National Geographic News | July 20, 2006 | Sean Markey (no funky bunch)
Posted on 07/22/2006 6:34:42 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1670680/posts
Dying Trade Of The Sahara Camel Trade
BBC | 10-22-2006 | John Pilkington
Posted on 10/22/2006 3:19:43 PM PDT by blam
http://www.freerepublic.com/focus/f-news/1724004/posts
Mysterious Egyptian Glass Formed By Meteorite Strike, Study Says
National Geographic | 12-21-2006 | Stefan Lovgren
Posted on 12/22/2006 2:19:39 PM EST by blam
http://www.freerepublic.com/focus/f-news/1757423/posts
Egypt’s Oldest Known Art Identified, Is 15,000 Years Old
National Geographic | 7-11-2007 | Dan Morrison
Posted on 07/13/2007 8:12:36 AM PDT by blam
http://www.freerepublic.com/focus/chat/1865401/posts
Cray Supercomputer... Discover Origin Of Mysterious Glass Found In King Tut’s Tomb
Macroworld Investor | 7-31-2007
Posted on 08/02/2007 10:47:08 AM PDT by blam
http://www.freerepublic.com/focus/f-news/1875334/posts
Ruins of 7,000-year-old city found in Egypt oasis
Source: ABC (Australia) | January 30, 2008 - 9:47AM | U/A
Posted on 01/29/2008 9:36:38 PM PST by Fred Nerks
http://www.freerepublic.com/focus/f-news/1961826/posts
UN vandals spray graffiti on Sahara’s prehistoric art
Times Online (UK) | January 31 2008 | Dalya Alberge
Posted on 01/31/2008 3:47:29 AM PST by knighthawk
http://www.freerepublic.com/focus/f-news/1962475/posts
Egypt’s Earliest Agricultural Settlement Unearthed
Science Daily | 2-15-2008 | University of California - Los Angeles
Posted on 02/15/2008 2:27:15 PM PST by blam
http://www.freerepublic.com/focus/f-news/1971126/posts
The Tassili n’Ajjer [Algeria] : birthplace of ancient Egypt ?
Journal 3 | 04-05-08 | Phillip Coppens
Posted on 04/05/2008 4:08:59 PM PDT by Renfield
http://www.freerepublic.com/focus/f-chat/1997350/posts
Sahara dried out slowly, not abruptly: study
Reuters | Thu May 8, 2008 2:10pm EDT | Alister Doyle, Environment Correspondent
Posted on 05/08/2008 2:12:41 PM PDT by suthener
http://www.freerepublic.com/focus/f-news/2013235/posts
Once Lush Sahara Dried Up Over Millennia, Study Says
National Geographic News | 5-8-2008 | James Owen
Posted on 05/08/2008 7:08:12 PM PDT by blam
http://www.freerepublic.com/focus/f-news/2013403/posts
In Search Of The Lost Sahara
eitb24.com | 5-15-2008
Posted on 05/18/2008 7:00:06 PM PDT by blam
http://www.freerepublic.com/focus/f-news/2017884/posts
US scientists find stone age burial ground in Sahara
AFP | Aug 14, 2008 | Jean-Louis Santini
Posted on 08/14/2008 12:40:47 PM PDT by decimon
http://www.freerepublic.com/focus/f-chat/2061932/posts
Graves Found From Sahara’s Green Period
NYT | 08/15/08 | John Noble Wilford
Posted on 08/15/2008 1:06:10 AM PDT by TigerLikesRooster
http://www.freerepublic.com/focus/f-news/2062227/posts
Graves Found From Sahara’s Green Period
New York Times Science | August 15, 2008 | John Noble Wilford
Posted on 09/15/2008 4:21:39 PM PDT by Fred Nerks
http://www.freerepublic.com/focus/news/2083075/posts
Thanks! I think it should be filled, but not via canal, I’d rather see two (or more) large boreholes, one (or more) leading somewhat downward from the lowest point of the QD, and one (or more) leading from Med sea level, somewhat downward, into the shallower part of the QD. But anyway...
http://www.freerepublic.com/focus/f-news/1589775/posts?page=22#22
http://www.freerepublic.com/focus/f-news/1787143/posts?page=4#4
http://www.freerepublic.com/focus/f-news/1804532/posts?page=33#33
http://www.freerepublic.com/focus/f-news/1822392/posts?page=34#34
http://www.freerepublic.com/focus/f-news/1877572/posts?page=12#12
http://www.freerepublic.com/focus/f-news/1965030/posts?page=4#4
Isn’t the Gore-Hansen Minimum a euphemism for their collective IQ?
My pleasure.
LOL! Yes — better reconsider to avoid possible confusion! ;-)
There’s a fellow over at Hannity with several thousand posts on the topic and some credentials too and he thinks that SC24 may top out with a sunspot maximum of 80 or less.
If memory serves me right, that (80) is about two border collies worth of smarts.
So the question then becomes: is the Vice President as smart as a border collie even though he lacks the dog’s better qualities?
? Hey, border collies are smart in addition to their other sterling qualities and good looks! Cost less to feed too!
http://www.archaeologyexpert.co.uk/ArchaeologyfromOuterSpace.html
Archaeology from Outer Space
Rivers in the Sahara
One of the first examples of its excellent use in archaeology was revealed in images taken over the Sahara Desert. This desert is the driest in the world and rapidly expanding. Radar penetration images revealed a sub-surface full of old riverbeds, mountains, valleys, and even expansive lakes. In fact, what lay under the roasting sand was once a landscape typical of Europe or North America.
Global warming srtikes again.......
*feeling sheepish*
http://www.gly.uga.edu/railsback/FieldImages2.html
Drainage Patterns and Paleoclimate
A MODIS image of the Central Sahara and a higher-resolution view within the previous image showing dendritic drainages that are evidence of wetter climates in the past in the Sahara.
http://www.gly.uga.edu/railsback/FieldImages/CentralSaharaMODISMega.jpeg
Thanks for both.
Yep.
Sound like what I’ve heard.
That, and your average border collie’s dog house doesn’t consume 3 to 4 times the electricity of your home.
http://www.kronia.com/thoth/ThoIII10.txt
“...The transition to today’s arid climate was not gradual, but occurred in two specific episodes. The first, which was less severe, occurred between 6,700 and 5,500 years ago. The second, which was brutal, lasted from 4,000 to 3,600 years ago. Summer temperatures increased sharply, and precipitation decreased, according to carbon-14 dating. This event devastated ancient civilizations and their socio-economic systems...”
Also, I believe that the USA or at least interests in the USA should as quickly as possible buy up rights to the Sahara Desert. If there was vast vegetation there most likely there is oil beneath those sands today. Also, underground rivers that if tapped into could turn parts of the desert into a vast garden again. Look at what Israel did with it's forsaken land. I believe produce will be and is becoming true wealth in todays world of shortages.
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