More than 80% of America’s population is clustered in its cities. This, of course, is no surprise. After all, cities are where the jobs are, where public transportation makes it a snap to get around, where you can get a whole roasted pig head delivered with a single tap on your iPhone, where beautiful people congregate in herds. It’s where the entire world seems to be waiting on your doorstep. So, what’s not to love? Well, the traffic. The pollution. The indignant subway workers. The lack of open spaces. The paucity of gardening. And mostly the inability to commune with nature on a regular and sustained basis. But here’s the deal:You can have your city and your nature, too. The back-to-nature urban trend sweeping the U.S. is nothing new—it dates to the early days of the 20th century when a rabble-rouser named Bolton Hall caused a hullaballoo when he appropriated a 30-acre lot deep in the Bronx borough of New York for “vacant lot gardening.” Read more.