Questions of how to green the North American economy, create a green energy and transportation infrastructure, and halt the deadly increase in greenhouse gas buildup dominate our daily news. Related questions of how the design of cities can impact these challenges dominate the thoughts of urban planners and designers across the U.S. and Canada. With admirable clarity, Patrick Condon discusses transportation, housing equity, job distribution, economic development, and ecological systems issues and synthesizes his knowledge and research into a simple-to-understand set of urban design rules that can, if followed, help save the planet.   No other book so clearly connects the form of our cities to their ecological, economic, and social consequences. No other book takes on this breadth of complex and contentious issues and distills them down to such convincing and practical solutions. And no other book so vividly compares and contrasts the differing experiences of U.S. and Canadian cities.   Of particular new importance is how city form affects the production of planet-warming greenhouse gases. The author explains this relationship in an accessible way, and goes on to show how conforming to seven simple rules for community design could literally do a world of good. Each chapter in the book explains one rule in depth, adding a wealth of research to support each claim. If widely used, Condon argues, these rules would lead to a much more livable world for future generations—a world that is not unlike the better parts of our own.