Keyword: lakechad

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  • African Ice Core Analysis Reveals Catastrophic Droughts, Shrinking Ice Fields, Civilization Shifts

    10/18/2002 7:41:36 AM PDT · by blam · 23 replies · 420+ views
    Science Daily ^ | 10-18-2002 | OSU
    African Ice Core Analysis Reveals Catastrophic Droughts, Shrinking Ice Fields, Civilization Shifts COLUMBUS, Ohio – A detailed analysis of six cores retrieved from the rapidly shrinking ice fields atop Tanzania's Mount Kilimanjaro shows that those tropical glaciers began to form about 11,700 years ago. The cores also yielded remarkable evidence of three catastrophic droughts that plagued the tropics 8,300, 5,200 and 4,000 years ago. Lastly, the analysis also supports Ohio State University researchers' prediction that these unique bodies of ice will disappear in the next two decades, the victims of global warming. These findings were published today in the journal...
  • Scandinavian Ancestry -- Tracing Roots to Azerbaijan

    12/15/2001 2:43:28 PM PST · by spycatcher · 55 replies · 3,406+ views
    Azerbaijan International ^ | Summer 2000 | Thor Heyerdahl
        Summer 2000 (8.2) Scandinavian Ancestry Tracing Roots to Azerbaijan by Thor Heyerdahl Above: Thor Heyerdahl with Peruvian children who still construct traditional boats made of reeds, the principle material that enabled early migrations on trans-oceanic voyages. Courtesy: Thor Heyerdahl. Archeologist and historian Thor Heyerdahl, 85, has visited Azerbaijan on several occasions during the past two decades. Each time, he garners more evidence to prove his tantalizing theory - that Scandinavian ancestry can be traced to the region now known as Azerbaijan. Heyerdahl first began forming this hypothesis after visiting Gobustan, an ancient cave dwelling found 30 miles ...
  • Drying Lake Chad puts 30m lives on edge

    09/06/2011 5:28:50 PM PDT · by SunkenCiv · 50 replies
    Businessday ^ | Tuesday, September 6, 2011 | Adeola Ajakaiye
    Lake Chad, one of the largest boddies of water in Sub-Saharan Africa, is on the verge of drying up, as only 1,500 square kilometres,  of the original 25,000 square kilometres size of the lake still remain. The figure represents 10 percent of the initial size of the lake, which traverses Nigeria and three other neighboring countries -- Chad , Niger , and the Republic of Cameroon. The lake, which banks in Nigeria , in the north-astern state of Borno, with Maiduguri as its administrative capital, is said to share similar hydrological basin with four other countries: Central African Republic, Algeria...
  • Fish Swam the Sahara, Bolstering Out of Africa Theory

    12/29/2010 11:42:33 AM PST · by decimon · 30 replies · 4+ views
    Live Science ^ | December 29, 2010 | Charles Q. Choi
    Fish may have once swum across the Sahara, a finding that could shed light on how humanity made its way out of Africa, researchers said. The cradle of humanity lies south of the Sahara, which begs the question as to how our species made its way past it. The Sahara is the largest hot desert in the world, and would seem a major barrier for any humans striving to migrate off the continent. Scientists have often focused on the Nile Valley as the corridor by which humans left Africa. However, considerable research efforts have failed to uncover evidence for its...
  • How Earth's orbital shift shaped the Sahara

    12/21/2010 10:03:52 AM PST · by LucyT · 36 replies · 4+ views
    Physorg Earth Sciences ^ | December 21, 2010 | Anuradha K. Herath
    The Sahara, the world's largest desert, was once fertile grassland. This fact has been common knowledge in the scientific community for some time, but scientists are still grappling with historic data to determine whether that transition took place abruptly or gradually. At the European Geosciences Union General Assembly held in Vienna, Austria earlier this year, researchers presented new evidence showing that the eastern region of the Sahara desert, particularly the area near Lake Yoa in Chad, dried up slowly and progressively since the mid-Holocene period.
  • Slow death of Africa's Lake Chad

    04/16/2006 2:29:22 PM PDT · by SunkenCiv · 16 replies · 871+ views
    BBC News ^ | Friday, 14 April 2006 | Andrew Bomford
    Lake Chad, which once straddled the borders of Chad, Niger, Nigeria and Cameroon, has shrunk by an estimated 95% since the mid 1960s, due to the growth of agriculture and declining rainfall. Image: Unep