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The American Geological Institute (AGI) conducted a survey to ascertain the number of students enrolled in introductory geoscience courses during the 2004-2005 academic year. 312 geoscience departments responded to this survey reporting a total of 191,778 students enrolled in three categories of introductory courses: physical geoscience, environmental geoscience, and geoscience of the National Parks or public lands. These introductory courses lay the foundation for our knowledge of energy and the environment.