Illuminating the impacts of environmental disasters and climate crises globally, this book examines the experiences of teens grappling with eco-disasters and issues in films of the twenty-first century.With an emphasis on teen activism, international settings and filmmakers, and marginalized perspectives, this book showcases teens on film that are struggling with present and future everyday eco-disasters amplified by climate change. By highlighting and interrogating diverse genres of teen films in which young adults encounter, address, and battle environmental issues and calamities while also struggling with adolescent development, this book acknowledges the young adult point of view missing from most critical ecocinema research and underlines connections between the more complex ‘coming-of-age’ themes found in teen films with ecocinema themes and approaches. The films examined navigate increasingly realistic conditions, even in fantastical settings, as they showcase teens’ relationships with and responses to environmental issues and eco-disasters. Emphasizing teen activism and under-represented intersectional perspectives outside Hollywood, it establishes the eco-teen film as a notable subgenre.This book will be of interest to students and scholars of film studies, ecocriticism, and environmental studies, especially those with a particular interest in ecocinema and/or ecocritical readings of films.