books.google.com - "The Unending Frontier brings into focus the staggering environmental changes that came with the creation of the early modern world economy. John Richards assembles material from all around the world into a crisp and coherent picture of the meaning of global markets for the biosphere in the sixteenth...http://books.google.com/books/about/The_Unending_Frontier.html?id=i85noYD9C0EC&utm_source=gb-gplus-shareThe Unending Frontier
