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Stone Age Mass Graves Reveal Green Sahara

iminplaya sends along a New Scientist article that begins: "One of the driest deserts in the world, the Saharan Tenere Desert, hosted at least two flourishing lakeside populations during the Stone Age, a discovery of the largest graveyard from the era reveals. The archaeological site in Niger [is] called Gobero... It had been used as a burial site by two very different populations during the millennia when the Sahara was lush... 'The first people who used the Gobero cemetery were Kiffian, hunter-gatherers who grew up to two meters tall,' says Elena Garcea of the University of Cassino in Italy and one of the scientists on the team. The large stature of the Kiffian suggests that food was plentiful during their time in Gobero, 10,000 to 8,000 years ago... All traces of the Kiffian vanish abruptly around 8,000 years ago, when the Sahara became very dry for a thousand years. When the rains returned, a different population, the Tenerians, who were of a shorter and more gracile build, based themselves at this site... 'The most amazing find so far is a grave with a female and two children hugging each other. They were carefully arranged in this position. This strongly indicated they had spiritual beliefs and cared for their dead,' says Garcea." The research article is at PLoS One.

11 of 305 comments (clear)

  1. Water = civilization by pieterh · · Score: 5, Insightful

    Isn't the history of civilization generally based around water for animals, agriculture, transport, industry?

    Maybe time to start treating our seas with respect. I was on a beach in Togo last week and every day the ocean washes up plastic bags.

    1. Re:Water = civilization by pitchpipe · · Score: 5, Insightful

      Isn't the history of civilization generally based around water for animals, agriculture, transport, industry?

      Yup. In the United States, around 53% of the population lives near the coast[.] Also, look at any map and notice how many major cities are right on major rivers.

      Maybe time to start treating our seas with respect.

      I hope we do, though right now I'm pessimistic. See this

      --
      Look where all this talking got us, baby.
    2. Re:Water = civilization by phulegart · · Score: 5, Interesting

      I'm not discussing what plant is better at making oxygen.

      I'm discussing where most of our current oxygen comes from. Phytoplankton may or may not be less efficient than other plants at producing Oxygen. That fact is irrelevant, since the sheer volume of phytoplankton provides MORE than half (my bad, not "about half" like I said earlier) of the Oxygen that is produced on Earth.

      References?
      http://en.wikipedia.org/wiki/Phytoplankton
      Nasa's take on the stuff
      http://earthobservatory.nasa.gov/Library/Phytoplankton/
      This one claims two-thirds of the photosynthesis on the planet occurs within them
      http://seagrant.gso.uri.edu/factsheets/phytoplankton.html

      As a side note...
      What started as a desire to create an Algae that would be the perfect fish tank decoration (one that fish would not eat, one that would flourish in a wide variety of waters and conditions, one that would proliferate easily) has turned into one of the world's greatest threats. One that could extinguish us.
      http://www.press.uchicago.edu/Misc/Chicago/519228.html
      In a nutshell, we made the stuff in Germany, it was studied at the Jacque Cousteau Oceanographic Museum of Monaco, and it got out... as it was first discovered in the Mediterranean under this very building. It is extraordinarily hard to kill, and it drives off all other sea life in any area where it grows. It drive off and suffocates other sea plant life, which drives off the little fish that eat that stuff, which drives off the larger fish that eat the small fish.
      Go ahead. Search for Killer Algae. See what it has taken to eradicate the outbreak in a lagoon in Australia... and the outbreak in Southern California (I hear it is threatening the Florida coast in some spots). If we destroy the ocean's ecology, we are soon to follow. And apparently our desire for the perfect fish tank may be our downfall.

      Also, it is possible to desalinate salt water, making it into fresh water. So sorry, I'm not with you that protecting our fresh water is more important. We've got to get on the ball and protect that which sustains our oxygen production, and ocean life. Else we die with lots of fresh water.

      --
      "I love deadlines. I love the whooshing sound they make as they fly by." -D. Adams
  2. plug for paul sereno by VoidEngineer · · Score: 5, Informative

    First of all, Paul Sereno is awesome. Modern day Indiana Jones, if there ever was one. I had the opportunity to work for him as a Research Assistant, doing fossil reconstruction of some of the other dinosaurs he dug up in Niger.

    Interesting tidbits about the guy who led the research:

    He left this particular site alone for three years before coming back to it with the appropriate team of people. He commonly does that... goes out in the field, finds something, and leaves it, only to return with the proper team and equipment. He doesn't like to mess up a find, and he'd rather be patient and do a thing right than go for a quick-win and run the risk of screwing something up. He knows how to follow through on super-complex projects better than almost anybody I've ever met before.

    His dinosaur laboratory is located across the street from the site of Chicago Pile 1, where the first controlled release of atomic energy occurred, in the racketball court underneath the bleachers of Stagg Stadium. That building, across the street, now know as the Enrico Fermi Institute, holds all sorts of milling equipment, 50 ton hoists, and a "monster garage" that's three stories tall inside. It has all the right equipment to mill graphite into control rods, or hoist dinosaur skeletons onto their scaffolding. It once held the first cyclotron, and they now build dinosaurs and space satellites there. The dino lab is affectionally known as the "Atomic Dino Lab".

    He also has a license plate that reads "dinosaur".

    All in all, a super cool guy. His class on paleobiology was, hands down, one of the most educational classes I've ever had the opportunity to take. The class was all on phylogenetics and cladistics, with a lab in geostrata and mineral identifications. Who knew?

    http://www.paulsereno.org/
    http://www.projectexploration.org/

  3. Re:not too surprising by VoidEngineer · · Score: 5, Informative

    Not all of the Sahara. Only a portion of it; and the boundaries are rather vague and unknown. Plus, while there's plenty of speculation that the Sahara was green, things like migration and movement of people through the area is unknown. Until now. This gives a whole lot of information. Well, two really important data points, at least.

  4. This what happened. by BitterOldGUy · · Score: 5, Funny

    Were their shamans just as convincing arguing for less water use and building smaller huts to prevent the climate-changes?

    No, but their chief, Chief Bush, was totally responsible for suppressing the data from the bones and tea leaves that it was happening. Then Chief Bush, along with the paleo-cons started bogus wars with tribes in Mesopotamia and with the Persians in order to promote chiefocracy. But the people eventually saw through the paleo-con lie that it was and realized that it was just a war to secure grain supplies.

    In the meantime, a former chief, Gor, showed the populous cave paintings that would show what would happen if they didn't change their wasteful ways.

    Really, that's the way it happened.

  5. Re:spiritual beliefs? by Bane1998 · · Score: 5, Informative

    "Athiesm" only refers to disbelief in the Christian God - believe it or not, an Athiest can still be a very spiritual person.

    Uhh, where do you get that, exactly? Have you looked up the word atheist in the dictionary? And it's spelled Atheist. Perhaps you were pointing that out by how you quoted your parent.

    Perhaps you are confused with agnosticism. Atheists do not believe in any deity, Christian or otherwise. An agnostic believes it is unknown, undefined. Maybe even believes there's 'something' out there, but doesn't know what, and so rejects organized religion.

    To claim Atheism is tied specifically to Christianity... is actually a bit offensive. Perhaps like saying Christianity is defined as simply denial of pagan beliefs.

  6. The Sahara and the Old Kingdom by mbone · · Score: 5, Interesting

    This article in Science Magazine indicates that the Sahara was fully formed by 2300 BCE

    To me, the timing between that and the rise of the Old Kingdom in Egypt (~ 2600 BCE) is too close to be coincidental. I think we will find that people migrated from sites such Gobero to the Nile, and that precipitated the formation of political organization in Egypt.

  7. Re:not too surprising by DI+Rebus · · Score: 5, Informative

    Jeesus. Those of us who studied history know that the Sahara could be crossed on horseback as late as the 4th Century AD, if you knew where the wells were.

  8. Terraforming Earth by dapyx · · Score: 5, Interesting

    We should forget about terraforming Mars. We should try to terraform Earth before that. This huge tract of land that is Sahara could be restored with some advanced technology to the greener place it once was. Are there any studies on the possibility of transforming Sahara?

    --
    I'm sorry, the number you have dialed is an imaginary number. Please rotate your phone 90 degrees and dial again.
  9. Re:spiritual beliefs? by Anonymous Coward · · Score: 5, Insightful

    Holy crap! The only reason you don't kill weaker people is because your holy book tells you not to?!?

    You can't reason it out and come to the conclusion that it's wrong without examining a holy text and/or your local laws?!?

    You, sir, are a scary scary scary person.