“It’s like trying to become a gardener without touching the dirt,” Christopher Perillo, a science teacher in Kenosha, Wisconsin, was quoted as saying in New Scientist magazine. Perillo may be a science teacher but he would be a dubious gardener with that attitude. Soil is not dirt. Dirt is what politicians sweep under the carpet. Soil is what plants grow in and, ultimately, what feeds and shelters us – even politicians and science teachers.
