A brief analysis of the content of the concept “information” in ecology is given. The purpose of this work is to analyze the features of the information component of the second and third principles of the ensuring environmental safety general theory. It is noted that information interactions in ecological systems play a key role in terms of the possibility of maintaining a balance in them to ensure environmental safety. It is argued that the information components of ecological systems of the environment have a physicochemical meaning, which consists in the reflection of material-energy changes in the form of an information environment (information field) of all subsystems. Information processing can be viewed as a kind of partial modification of self-organization. In open systems (pumped) that give off entropy, information can be acquired. It is the entropy and, of course, the uncertainty of the position of the system that can only increase, i.e. information itself can be nothing more than lost. Thus, the indicated problem seems to be important, essential for the currently achieved level of development of the general theory of ensuring environmental safety and information theory.