Sahara Desert "Greenings"

  • A recent study provides insights into the cyclic greening of the Sahara Desert over the past 800,000 years, uncovering the role of Earth's orbital changes and their impact on this phenomenon.
  • The study, simulating these "greenings," offers evidence that Earth's orbital changes influenced the timing and intensity of humid Sahara events.
  • Changes in Earth's orbital precession, causing shifts in the Earth's axis and seasonality, played a significant role in driving North African Humid Periods.
  • These orbital changes affect the African Monsoon's strength, leading to increased Saharan precipitation and the spread of savannah-like vegetation across the desert.
  • This study highlights a ....
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