Our student volunteers were working hard last week, dragging huge piles of privet cuttings and other shrubs down the slope toward the power chipper. More helpers were bringing plant debris out of the bamboo forest, that unique environment at the end of the Brenau campus where bamboo, planted in the 1930s, has grown into huge trees. With a loud roar, the machine was turning all the dead plant matter into a handsome pile of mulch.