The natural resource used to make paper is wood. Paper production typically involves harvesting trees, primarily softwoods like pine and spruce, and sometimes hardwoods like birch and eucalyptus. The wood is processed to extract cellulose fibers, which are then pulped, refined, and formed into sheets of paper. Recycling paper products has gained importance to conserve resources and reduce waste, as recycled paper can be reprocessed into new paper products, thereby minimizing the demand for virgin wood. The paper industry also emphasizes sustainable forestry practices to ensure that tree harvesting does not negatively impact the environment.