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Keeling Curve

  • 28 Sep 2021

  • The amount of carbon in Earth's atmosphere in May 2021 reached its highest level in modern history, a global indicator – Keeling Curve - showed.
  • The Keeling Curve, named after its creator Dr. Charles David Keeling, is a global benchmark for carbon levels in the atmosphere.
  • It is a graph that represents the concentration of carbon dioxide (CO2) in Earth’s atmosphere since 1958 at the Mauna Loa Observatory in Hawaii.