One of the leading contemporary voices on climate change, Greta Thunberg answers fundamental questions about leadership and what really matters to her. At just seventeen, Greta Thunberg is one of today's most prominent climate change activists. Thunberg's impassioned calls for action on global warming have captured hearts and minds around the world. In this inspiring interview, she 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. Immovable in her mission, Thunberg's story is a testament to the power of young voices and proof that, when guided by truth and perseverance, anyone can create meaningful change. Created in collaboration with the Nelson Mandela Foundation, I Know This to Be True is an uplifting new series inspired by his legacy. Extraordinary figures from diverse backgrounds answer the same questions, sharing their compelling stories, guiding ideals, and insightful wisdom. The result is a collection brimming with messages of leadership, courage, compassion and hope. Delivered in lovely, giftable hardcovers with vivid photographic portraits throughout, these books offer encouragement and guidance to future leaders and anyone hoping to make a positive impact on the world. Royalties from sales of I Know This To Be True will support language translation and free access to the films, books and educational programmes in all countries with developing economies, or economies in transition, as defined by United Nations annual classifications.