The U.S. EPA released a report this week on how our cities are growing. So there’s the first good news: They’re growing! But you knew that already. Other good news: Nearly 75 percent of major metro areas saw a higher proportion of housing being built in already-developed areas (“infill” in planning jargon) from 2005 to 2009 compared to 2000 to 2004. The bad? From sea to shining sea, we still really love to sprawl. Almost all major metro areas continued to grow outward faster than they grew inward.