There's nothing that suggests this material has to be derived from wood pulp, or from trees. There are plenty of other organisms that produce the type of cellul

There's nothing that suggests this material has to be derived from wood pulp, or from trees. There are plenty of other organisms that produce the type of cellulose they're working with. As mentioned elsewhere, it could be more efficient plants such as bamboo, or even sugarcane grasses, or hemp, for that matter.