This article is based on a distinctive study that seeks to analyse the nascent role of teenagers’ activism and protests for climate change action. With the increasing realisation of children's rights to participation, the past few years have marked the rise of the new dispensation of climate activism and protests in which teenagers have occupied the centre stage. We pay specific reference to Greta Thunberg, a Swedish child climate activist, in as much as she can set a framework upon which (...) Africa can draw parallels, lessons and insights for climate activism and protests. Even though the context may be different, the paper attempts to inform vibrant climate action through activism by children and ultimately climate policies, laws and management for environmental sustainability in Africa. We engaged document review and thematic approaches, and it emerged that children climate activism and protests in Africa are not as vibrant as they should be given the prevalence of climate inaction across the continent. Therefore, there is much to learn from Thunberg by pushing national governments and regional organisations to increase the decision-making space of children in the fight against climate change. (shrink)