Wood products and lumber expert witnesses may opine on wood manufacturing, building materials, engineered wood, and more. In Environmental Facts and Green Building, APA-The Engineered Wood Association writes:
Wood, and more specifically engineered wood, is a renewable building material and is a good choice for the environment, for green building, and for long-term life cycle performance. With intensified interest in environmental impact and green building, it’s important to consider the attributes that make wood a good choice for the environment. It’s also important to understand how engineered wood products can be used to meet the emerging standards and requirements for green building.
The manufacture of wood products requires substantially less energy than the production of other building products such as steel and concrete. Wood product manufacture results in fewer greenhouse gas and other air-polluting emissions. And wood design compares favorably on the solid waste scale. Its environmental attributes make wood the natural choice for sustainable design.