Alpinist and labradoodle devotee Graham Zimmerman has poured his heart into climate change activism after witnessing its effects in the world's great ranges. His new book, "A Fine Line" reflects on his incredible climbing career. In the sometimes overly macho, deeply risky pursuit of alpine climbing, his book offers a welcomed counterpoint to the narrative we often hear. Fitz sat down with Graham for a live Q&A at The Mountaineers in Seattle earlier this month. Read A Fine Line: Searching for Balance Among Mountains Want to hear the full conversation? Subscribe to Diaries+ Gift a subscription