Changing planetary conditions force all actors of social processes to transform social practices. A significant role of society greening belongs to socio-political activism, which becomes a mechanism for launching innovations and changes practices. This article studies the sources of green practices of citizens, the mechanisms of stabilization and dissemination of new practices by questioning the population in Tyumen. To achieve this goal, we formulated five hypotheses. The study did not confirm the hypothesis that green practices arise due to school education, that the authorities are the initiators of greening society, that young people are the driving force of green practices. The obtained data partially confirmed the hypotheses that the green practices of the population are not regular and involvement in green practices occurs through ecological communities. It was found that from 30 to 71% of Tyumen residents know about green practices and are engaged in them. The most common are both practices that have a long history — cleaning the territory, planting trees, and modern practices — taking care of pets, separate waste collection. Respondents consider environmental organizations, activists, and environmental foundations to be initiators and key drivers of green practices. The research contributes to understanding how green practices appear, how they gain their supporters, how they spread in society. Our research can be useful for authorities for improving of the greening process.

A review of the literature on the theory and practice of creating smart cities shows that there is no common understanding of the concept of a smart city, as well as the goals of its creation. The concept of a smart sustainable city has been gaining popularity in recent years and is being actively implemented in various countries. It is considered as a means of solving social, economic, and environmental problems caused by urbanization. The Nordic countries have achieved the greatest success in its implementation. The purpose of the article is to analyze the existing theories on the concept of smart sustainable cities, as well as the most successful experience of their creation in the Nordic countries. This analysis will allow us to determine the most optimal technologies for implementation in Russian practice. The methodological approach of this study includes a systematic review of the literature on smart cities, with an emphasis on those that focus on conceptual development and provide an empirical database. The review shows that the literature reveals three types of driving forces of smart sustainable cities. These are technologies, communities, and public policy which are associated with such areas of their development as improving the population welfare and the life quality in cities, productivity, and efficiency of their functioning and management. But this experience is not taken into account in the development of Russian programs for creating smart cities. The article presents a comprehensive study of the experience of Finland, Norway, Sweden, Denmark, and Iceland in creating smart sustainable cities, digitalizing the economy of countries, and at the same time in achieving the goals of sustainable development.