Label local/green building materials.
I would choose local/green building materials if there were some system of assurance. I would prefer to buy BC wood/materials for my house.
The City is supportive of building materials labeling however not in our jurisdiction to implement this.
Juvarya Warsi commented
Check out the Metro Vancouver Build Smart product directory for information on green building products, http://www.metrovancouver.org/buildsmart/productdirectory/Pages/default.aspx