Graham Zimmerman is an award-winning alpinist, writer, filmmaker, and climate advocate. We talked about his harrowing ascent of Mt. Bradley in his early 20s, getting injured in New Zealand, how his relationship with risk has evolved, losing friends in the mountains, the mystery of passion, the 100-year-plan, falling in love with his wife Shannon, getting shut down on K2 by global warming, the climate crisis, the concept of imperfect advocacy, and his new book, A Fine Line: Searching for Balance Among Mountains.