Although scholars have long documented perceptions of climate change and the public's evolving response to the perceived risk it poses, only more recently have these analyses begun to examine youth and their views of the issue. Given that education has traditionally been considered a long-term strategy to promote sustainability among youth, this article conducts a cross-national and comparative study of students from 22 countries to evaluate factors commonly associated with youth perceptions of climate change as a threat to the world's future. In doing so, this study finds that promoting institutional trust and civic knowledge may increase student climate change concern to a greater degree than other, more emphasized, curricular and co-curricular environmental school opportunities. These new findings reveal potential pathways for future climate change education research, policy, and practice to help promote greater climate awareness and action among youth.