In one of his most personal books, Bill McKibben invites readers to join him on a hike from his current home in Vermont to his former home in the Adirondacks. Here he reveals that the motivation for his impassioned environmental activism is not high-minded or abstract, but as tangible as the lakes and forests he explored in his twenties, the same woods where he lives with his family today. Over the course of his journey McKibben meets with old friends and kindred spirits, including activists, writers, organic farmers, a vintner, a beekeeper, and environmental studies students, all in touch with nature and committed to its preservation. For McKibben, there is no better place than these woods to work out a balance between the wild and the cultivated, the individual and the global community, and to discover the answers to the challenges facing our planet today.