We investigate the additionality of the principles of geoecological ethics and ethical geography from the perspective of the manifestation of the norms of human activity in the natural environment. Geoecological ethics is based on the through principles of sustainable development and responsibility for breaches of different-quality norms existing in nature, economy and society, and on social relations considered in different systems with due regard for the characteristics of geographical environment. The degree of responsibility is measured in dimensionless indicators of reliability (dependability) theory, the integrated hazard of activity with natural restrictions on the action on geosystems and departures from normative states. Ethical geography generates landscape-cultural norms of implementation of different kinds of activity on a territory. The general ethical laws and quantitative models and methods for responsibility assessment are special interpretations of the notions and axioms of general system theory adopted as the norm of organization of knowledge. The principles of geoecological ethics manifest themselves as a result of the interpretation of the general laws of ethics via the geohistorical environment, primarily in the form of responsibility for a departure from the environment-caused norms of activity. Ethical geography implies responsibility for the reliability of knowledge of the generally significant norms of the state and allowable changes in environment. A violation of geoethical norms and nature management normative will necessarily lead to negative changes in the live activity conditions of man and society.Keywords: geoecological ethics, principles of sustainable development, environmental approach in geography, moral and real responsibility.