The research aims to substantiate the possibilities of preparing future teachers for the effective use of digital technologies in a green economy using the capabilities of various disciplines. During the research, the authors applied praxis metric (study of regulatory documentation) and theoretical methods (analysis of Russian and international literature, generalization, comparison, forecasting, and pedagogical modeling). The authors analyzed the possibilities of simultaneous formation of digital and ecological competence of future teachers within the disciplines of communicative and digital module and design and technological practice. The authors considered digital educational content with an environmental focus and provided examples of tasks using various digital tools. Preparing future teachers for the effective use of digital technologies in the interests of sustainable development also occurs within the framework of extracurricular project, research, and educational activities. Examples of projects and hackathons are given. Special attention is paid to the need for future teachers to take a responsible attitude to use material and information resources, as well as the digital footprint of these resources.