We are rapidly cutting down tress to make wood products like paper and building materials. this could be lessened dramatically if we were to make a substitute for, as a start, paper, yes?
To make a material that is cheaper and readily available, it would be plastic, i would suppose. this could be done if we were to follow the rules for graphene, where we fold or combine thin layers of plastic to become a substitute for paper. when we are done with it, we could recycle it, of course, as this will really harm the environment.
Instead of building houses out of wood, like they do in america, we could see it done as cheaply by using this same plastic. he benefits are it will not rot, of course, and will probably be easier to have it sized before hand.