The problems of creating and managing urban areas according to the approach called “intelligent’ are undoubtledy one of the leading challenges in the contemporary world. A major part of published research from this range is focused on particular tasks of ‘environmental origin’, like sustainability, green economy, reverse economy or the “classic’ problem of protecting urban areas against various sorts of pollutions (air, water, soil, acoustic noise). But in the analysis of the literature sources authors of this paper have noticed that the problems of management is not enough often considered, especially in the context of collecting and processing ‘environmental’ data, obtainability of such data and - last but not least - using the information based on such data in procedures of managing the urban areas. In the introductory part of the papers the above mentioned problems are briefly presented as a background for further consideration. Next, the needs of environmental information in managing urban areas are identified as well as obtainability of such information. Authors have based the contents of this part of the paper on their own experiences from their project ‘Smart City: A Holistic Approach’ as well as on results of surveys carried out on a representative sample of Polish cities. Applying the developed by them model of stakeholder groups in Smart City, the authors presents in the third part of the paper some detailed proposals concerning both the requirements and manner of using the environmental information by various participants of Smart City projects. A special attention is paid on the meaning of environmental information in educational efforts. In the summary part of the paper, some perspectives for further research are briefly presented.