Based on current earth science findings, survival of our species will rely on better management of our relationships with the environmental system in which we reside. Accomplishing this requires the enlistment of a scientific understanding and management of our internal natural systems. Specifically, human urges that are oriented toward individual and small group well-being must be successfully managed to ensure species-level adaptation and survival. An essential first step for accomplishing this is to define a set of psychological criteria presumed to mediate the relationship between these individual urges and behavior at broader levels of analysis, and particularly organizational and community behaviors. Once criteria have been elaborated by key stakeholders, assessment and feedback processes common to major areas of applied psychology provide many options for intervention. This approach is at the heart of the applied psychology of sustainability that will be elaborated in this article. After defining the core problem and laying some foundational assumptions, an overview of this approach will be presented as a means to addressing the problem of using our psychological systems to manage our psychological systems’ effects on the environment.