Smart wood: bio-engineering trees for specific purposes

Wood can do some marvelous things. It can be made into cross laminated timber to build skyscrapers up to 30 stories high. It can be used to make paper, insulation, biofuels, and non-petroleum based feedstocks for plastics and medicinal purposes. But not all trees can do all things equally well. Scientists at North Carolina State University have devoted the last 10 years studying the biological triggers that determine the characteristics of trees as they grow.