Forest sustainability and forest certification are important natural resource management and environmental issues. Forest certification addresses the social and environmental issues in the acquisition of raw materials (e.g., lumber to be used in the building process). Life cycle assessment is a common technique used in the evaluation of forest sustainability issues and forest certification programs. Life cycle assessment is a tool to evaluate multiple issue environmental and some social impacts attributed to a product or process (e.g., wood as a building material). Inputs (like raw material extraction) and outputs (like pollution) are measured over the entire life process, with a goal to minimize negative environmental impacts over the life cycle of a product or process. The relationship between forest certification schemes and life cycle assessment is examined and assessed.

An unreferenced statement on page 608 is challenged as being incorrect. FSC and PEFC are competitors and issues on the differences between the programs are often arguable. We do agree that a small portion of the statement could have been more clearly stated, but the intent of the statement was essentially correct. The original article contained 80 references and not every sentence could be referenced. We include 18 additional references below to strengthen and clarify our statement.