If there's been one progressive assumption about cities over the past couple of decades, it's that they need to be greener—more trees, more parks, more green projects on top of buildings, all of that. And while the goals are laudable, and the plant life will surely help in the climate era, a new books asks if we're so concerned with making cities green that we're forgetting to make them functional for the people who use them?What exactly makes for a great city? Why does every development project you see now have a tinge of 'greenwashing' to it? Is there a way to make our cities better for everyone, and better prepared for the climate era that might not be as pretty, but would provide much more formidable infratructure and services?GUEST: Des Fitzgerald, Professor of Medical Humanities and Social Sciences at University College Cork, Ireland. Author of The Living City: Why cities don't need to be green to be great