Clearcutting, or clearfelling,'s a controversial forestry/logging practice in which most or all all trees in a harvest area are cut down. Logging companies and forest-worker unions support the practice for safety and economical reasons. Detractors see clearcutting as a destruction of habitat and even as a contributor to global warming. Clearcutting's used by wildlife biologists and managers as a method of mimicking disturbance and increasing primary successional species like aspen, willow and B… (More on Clearfelling)