Traversing the Evolution of Research on Engineering Education for Sustainability: A Bibliometric Review (1991-2022)

Engineering education plays a pivotal role in cultivating the engineering capacity for sustainable development. Nonetheless, there has been no comprehensive review that examines sustainability as a distinct knowledge domain within engineering education. This review filled this gap by conducting a bibliometric review to document the research landscape, analyze the intellectual structure of the literature, and identify emerging research themes. The review sourced 2738 Scopus-indexed documents published between 1991 and 2022. Data analyses included descriptive statistics, co-citation analysis, and keyword co-occurrence analysis. The study identified consistent growth in research output and geographic diversity. Four predominant conceptual themes were identified in the literature: (1) Engineering Education Reform, (2) Engineering Competencies, Pedagogy, and Curriculum, (3) Curriculum Assessment and Benchmarks, and (4) Sustainable Technologies. Findings emphasize the need for defining precise engineering competencies related to sustainability, incorporating diverse teaching methods, and ensuring that sustainability learning outcomes align with changing industry norms, regulations, and accreditation criteria. The study also highlights a growing focus on the use of Industry 4.0 technologies as a means of achieving sustainability outcomes. The review underscores the need for sustained curriculum reform to successfully transform engineering education toward sustainability.