In a final lunge toward authenticity, he forages for mushrooms in a burned-over pine forest and shoots a wild pig, a primal confrontation that briefly reduces Pollan, an .
Stumps and scraps, burned-over and diseased timber are transmuted into hardboard and rayon, edible sugars and drinkable alcohol.
This year they will descend on barren, burned-over hillsides and dry creek beds with no vegetation to slow the flow of the water.