Oh yes, there are other building materials that are fine ecologically. I'm not saying wood is the only one. But clearly concrete and steel have been identified by the IPCC as the second and third sources after fossil fuels. The credits are accepted. It's a scientific fact. Deforestation and LUC, which is land use change, are a totally different issue. If you do land use change, you cut down the forest and you bring in a building--
