Modernist American writers and artists had multiple and often conflictual responses toward the many environmental issues that became a growing concern as a result of rapid modernization at the outset of the twentieth century. Few artists in the modernist period avowedly declared themselves to be environmentalists or subscribed to what came later to be defined as being “green.” This chapter examines methods used especially in recent years by scholars in studying the range of environmental matters of form and content in modernism. Close readings are provided of important texts by Zora Neale Hurston and John Steinbeck as examples of how to apply these ecocritical research methods.