Ebook: Limits of the Known

A celebrated mountaineer and author searches for meaning in great adventuresand explorations, past and present. --Publisher.;Roberts, a celebrated mountaineer, has spent his career documenting voyages to the most extreme landscapes on earth. Reflecting on humanity's-- and his own-- relationship to extreme risk, he examines the motivations of explorers who have pushed the limits of the human body on their perilous journeys. Then he considers our future in a world we will have mapped and trodden from end to end. -- adapted from jacket.;Farthest north -- Blank on the map -- Prehistoric 5.10 -- The quest for the other -- First descent -- First contact -- The undiscovered Earth -- The future of adventure.