Policies or actions on climate must be based on real community conditions. The sustainable competence of student teacher candidates in areas with peat lands characteristics can be measured by the P-PSEL. The P-PSEL questionnaire with three variables, namely knowledge, competence, and behavior, as well as 19 valid and reliable indicators, is the structure of the fit model as a measuring tool for environmental literacy in peat lands areas. The knowledge variable positively affects the competency variable, and the competency variable positively affects the behavior. The formation of peat lands environmental behavior can be started with the formation of knowledge and competence for the sustainable development of prospective teacher-candidates.