Boston Globe: Climate change is causing more intense storms in Boston’s suburbs, scientists say. That means more storm water is expected to flow over local streets in the coming years, picking up more oil, salt, and lawn fertilizer as it travels and dumping more of those pollutants in local lakes and streams. To handle the predicted deluges, scientists at a recent regional conference in Maynard recommend following the example of officials in Littleton: Plant perennials. For years, Littleton …