It seems like just a fun, even silly, thing to do — bury a pair of underwear made of white cotton, and then dig them up a couple of months later to see what soil microbes have done to them. But the Soil Your Undies campaign has a very serious purpose: To show people that microbes are critical to soil health and, more importantly, that not all soils are healthy. Photo credit: Soil Conservation Council of Canada “People have found that a more biologically active soil will do a