The I Know This to Be True series is a collection of extraordinary figures from diverse backgrounds answering the same questions, as well as sharing their compelling stories, guiding ideals, and insightful wisdom. At just fifteen, Greta Thunberg became one of today's most prominent climate change activists. Her impassioned calls for action on global warming have captured hearts and minds around the world. In this inspiring interview, Thunberg discusses the irrefutable facts surrounding climate change, the need to hold political figures and lawmakers accountable, and why every person has the power to make a difference.