Without soil, there are no plants and no livestock that consume plants. There are no people who consume plants and livestock. There is no society. Soil is the foundation. It is life, and we're running out of it.
Fire creep in the context of prescribed burning can be defined as unnoticed smoldering of plant material that is thought to be extinguished. The buildup of thatch along the fireline can cause fire to "creep" across the firebreak, which can result in an escaped fire.