In this longitudinal study, we examined the relationship between the trajectory of generative concern measured at ages 23, 26 and 32 and environmental narrative identity at age 32. Canadian participants completed a questionnaire on generative concern at ages 23, 26 and 32 and were then interviewed about their personal experiences with the environment at age 32 (N = 112). Narratives were coded by independent raters for meaning, vividness and impact, with higher levels indicating a more salient environmental narrative identity. Latent growth models revealed significant individual variability in the trajectories of generative concern from ages 23 to 32. This variability was associated with the salience of environmental narrative identity at age 32 through two different developmental processes: (1) having a higher level of generative concern at age 23 predicted a more salient environmental narrative identity at age 32; and (2) those who developed higher levels of generative concern during the course of emerging adulthood (from ages 23 to 32) also appeared to display a more salient environmental narrative identity at age 32. Implications of these findings are also discussed.