Original sentence: , bone) and to serve as fuel for warmth and mobility, although a conscientious non-vegan can sometimes find uses for most animal by-products.In fact, it is claimed that only about 10% of the energy used in livestock is available for human consumption:.Often cited are the pollution of local environments by animal waste, as well as the resources used to rear livestock.This is due in part to the fact that rearing livestock requires resources to produce many inedible products (e
Edited sentence: , bone) and to serve as fuel for warmth and mobility, In fact, it is claimed that only about 10% of the energy used in livestock is available for human consumption:.Often cited are the pollution of local environments by animal waste, as well as the resources used to produce livestock.This is due in part to the fact that producing livestock requires resources to produce many inedible products (e