A campaign this month is challenging Pennsylvanians to learn about the health of their soil and neighborhood microbes by planting underwear in their farms or gardens. The Soil Your Undies campaign invites residents to bury a pair of 100% cotton underwear, which can help visualize soil quality over time. Kelly O'Neill, Pennsylvania agriculture policy analyst for the Chesapeake Bay Foundation, which is helping organize the event, said residents can dig up the underwear after 60 days and report their findings. ...