Job-to-job mobility is a natural feature of dynamic economies, but low geographic mobility, geographic mismatches between jobs and workers, or skills gaps can be barriers to job transitions. This paper examines the dual role of both skills and geography in facilitating job transitions, with a focus on the green transition. Using online job postings and labour force survey data from Italy, the United Kingdom, and the United States, this paper develops a skills-based measure of occupational proximity to assess career pathways and presents evidence on the effectiveness of this tool in predicting job transitions. This tool is then used to examine feasible career pathways, in terms of skills and local demand, for both vulnerable workers and in-demand green occupations.