To close out the year on TED Talks Daily, we wanted to leave you with something special. It's an immersive sound journey through the history of Earth, as told by ecologist and author Stephan Harding. He's had a massive influence on the climate movement and has inspired global leaders to shift their perspective to a Gaian view of life, which respects both the living and nonliving elements of Earth. We're excited to share an exercise of that shift with all of you. If you can, listen to this with headphones while walking. (This episode is part of the TED Talks Daily end of year wrap-up, a collection of ideas to help you better understand the trends of the past year and feel ready for the one ahead. To hear more of Outrage + Optimism -- another podcast from the TED Audio Collective, which engages in inspiring debates on how we can face the climate crisis head-on -- follow wherever you're listening to this.)