"John Muir was a fascinating man who was many things: inventor, scientist, revolutionary, druid (a modern day Celtic priest), husband, son, father and friend, and a shining son of the Scottish Enlightenment -- both in temperament and intellect. Muir went from impassioned author to leading activist. He would popularize glaciers unlike anybody else, and be to glaciers what Jacques Cousteau would be to the oceans and Carl Sagan to the stars The book also offers an environmental caveat on global climate change and the glaciers' retreat alongside a beacon of hope: Muir shows us how one person changed America, helped it embrace its wilderness, and in turn, gave us a better world. In 2005, Californians had to choose a design for its commemorative quarter. Hundreds of submissions - the iconic Hollywood sign above Hollywood Hills, the 1849 Gold Rush, the Golden Gate Bridge, etc. - fell away until one remained: an image of John Muir. Muir's legacy is that he reordered our priorities and contributed to a new scientific revolution that was picked up a generation later by Aldo Leopold and Rachel Carson, and is championed today by influential writers like E.O. Wilson and Jared Diamond. Heacox takes us into how Muir changed our world, advanced the science of glaciology and popularized geology. How he got people out there. How he gave America a new vision of Alaska, and of itself. "--