Purpose There are increasing expectations for educators to include sustainability as part of higher education Information and Communication Technology (ICT) curricula, but we still lack concrete ways how to integrate it into teaching. To be able to create meaningful learning experiences we need to understand how our students approach sustainability and what they base their thinking on.Design/methodology/approach We asked our students to consider technology development linked with the European Green Deal targets in their essays and utilized nexus analysis to focus on discourses in place, interaction order and the historical body revealed in the essays.Findings Learning about sustainability could be approached in the ICT courses in a structured way as a question of four intersecting elements: individuals, societal systems, current and emerging technologies, and relevancy of the topic, all of these linked with the agency of ICT professionals.Originality/value This study contributes toward sustainable ICT research and design of effective ICT education (1) by providing an understanding of how future ICT professionals approach sustainability and digital technology development, (2) by proposing a way to raise students’ consciousness of their own role as future professionals in developing more sustainable digital solutions and (3) generally helping students to see the big picture of sustainability through setting the scene with the wider targets.