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  • Trends in Atmospheric Carbon Dioxide

    Trends in Atmospheric Carbon Dioxide

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    Charles David Keeling began measuring atmospheric carbon dioxide (CO2) in 1958 at the Mauna Loa observatory on the big island of Hawaii.  This graph shows atmospheric carbon dioxide concentration in parts per million (ppm) by volume from 1958 to 2016. Worksheet also available in Spanish.

  • Resistance to Coral Bleaching

    Resistance to Coral Bleaching

    Data Point

    To test whether corals can become more resistant to bleaching, Dr. Steve Palumbi and colleagues performed a series of experiments in the U.S. National Park of American Samoa off of Ofu Island.

  • Modeling Ecosystem Effects of Termite Mound Patterns

    Modeling Ecosystem Effects of Termite Mound Patterns

    Data Point

    Dr. Corina Tarnita and colleagues studied how a pattern of termite mounds across a dryland ecosystem enhances resilience against desertification.

  • Coral Bleaching Activity

    Coral Bleaching Activity


    This is a classroom activity in which students use authentic data to assess the threat of coral bleaching around the world. It supports the 2014 Holiday Lectures on Science video featuring Dr. Stephen Palumbi.

  • EarthViewer Data Files

    EarthViewer Data Files


    Summaries and links to the data files used to create the charts in EarthViewer, including the APK file to manually install the app.