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Environmental change is, today, an unavoidable cause of societal stress that leads to suffering and migration. The focus here is not on change itself, but on the local and regional resources and environment conditions that frame both the extent of change and the alternative actions that might mitigate effects. In this context, a modelling approach to resource and risk assessment and possible responses change is presented. Complex systems are not initially suitable for a bottom-up approach to modelling that assumes...

The mouth areas of the seas are the most interesting and complex objects for studying the distribution of pollutant flows and the factors of their formation. Different approaches can be used to identify pollutant flows and the role of the geochemical barriers, in particular the analysis of the distribution of marker compounds that most clearly reflect the pollution levels themselves and possible sources of their entry into the components of the aquatic systems. Polycyclic aromatic hydrocarbons (PAHs) are considere...

The Don River Delta represent a single hydrographic system, the development of which is characterized by the spatial-temporal variability. The functional role of the individual delta channels and their participation in the distribution of the river flow are different due to significantly different morphological characteristics and stages of development. In turn, this is reflected in the peculiarities of hydrological and hydrochemical processes. In this regard, within the delta the intensity of migration of chemica...