AbstractClimate change poses serious political challenges to liberal democracies arising from the problem of short-termism and the priority accorded to the vested interests of present adults over the vulnerabilities of children and future generations. This article aims to analyse the justifications, benefits, and policy implications of centring children in climate change politics in order to overcome these problems. The central argument is that ‘thinking with children’ introduces normative vantage points for tackling climate change based on taking responsibility for future harms. Such a vantage point also produces new sites of contestation shaped by adult representations of the renewal and risk embodied in children. First, we outline what “thinking with children” means for democratic politics, focussing on how child-as method approaches centre the injustices faced by children and youth and the implications for the renewal of democracy. We then analyse how this normative shift to centre children addresses the problems of vested interests and short-termism by de-naturalising present adult interests, foregrounding impacts on young people as the future demos, and giving long-term priority to the affectedness of future generations. Finally, we analyse the policy implications that thinking with children offers, using a recent landmark court case in Australia to propose independent legal standing for children in public interest cases and the introduction of Child Impact Assessments in climate policymaking.