'I Know This to Be True' is a global five-year project founded on original interviews to inspire a new generation of leaders. Truth, wisdom, inspiration and what really matters for the most inspiring leaders of our time.Still a teenager, Greta Thunberg is 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, 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.