Аннотация:The conditions under which the life of a contemporary person goes are often and justifiably called extreme ones which stimulate the development of stress. This is connected with many factors and threats, including socio-economic, environmental and natural ones. The author substantiates in the article the importance of the study of psychological aspects in the interdisciplinary problem of human interaction with the environment. The interest in this problem is determined by the exacerbation of global environmental problems of mankind, the need for psychological support for the implementation of the concept of “sustainable development”. The areas in Western psychology are analyzed, united by a common scientific problem that have areas of subject and methodological intersection: environmental psychology, ecopsychology, psychology of interaction with the environment and psychology of sustainable development. Many researchers consider the ambiguity of the concept of “ecology of mental development” which is widely used in modern psychological writing. Some authors assert that correlation of the context of foreign and Russian studies will contribute to more active involvement of psychologists in solving real problems of human interaction with the environment. Besides, the paper presents the results of an empirical study of the phenomenon of suicide from the perspective of an ecological approach. Suicidal behavior is considered as a disturbance of the “sustainable development” of an individual and as a destructive response to the “global challenges”. Considering suicide as a deep act that brings a person closer to comprehending the fundamental worldviews of being, there is a need to consider risk factors and preventive factors of the manifestation of suicide. In this context, the level of the person’s hardiness is discussed as a factor that harmonizes the personal ecology of a person and thereby prevents the risk of suicide. Conclusions have been drawn that hardiness is a strong personal resource to overcome the negative impact of stressful situations in a system of unfavorable social ecology, and thus, a resource to prevent the risk of suicidal behavior. ISSN: 1307-9867