This study aims to show how digital youth leadership and activism on climate change has developed, what type of online discourse the movement has managed to channel in the fight against climate change and, above all, why the recently emerged #FridaysForFuture movement has succeeded, and not the classic adult environmental movement. The goals of this project were: (1) To analyze who the main influencers are, and what role they are playing in the #FridaysForFuture movement; (2) To establish the differentiating characteristics of climate activism in the #FridaysForFuture movement; and (3) To know what spread and creation of new movements arises around #FridaysForFuture.