This course examines two fundamental questions about biological, chemical�and�physical processes that influence the biosphere. First, how do humans obtain knowledge about these�environmental processes? Second, how can we assess human influences upon these�environmental processes? A key conceptual framework for the course is that�environmental science provides tools for predicting future states of the earth�s�environment. Case studies, readings, discussions, writing assignments,�and�group�exercises provide a foundation for understanding predictions about how the biosphere is influenced by human activities.