The wood that is used for the production of hardwood flooring comes from professionally managed forests or tree farms, not old-growth forests. This means that for every tree that is felled for use in the production of hardwood flooring, more are planted in their place.
This process is particularly beneficial for the reduction of CO2, because younger trees have an increased capacity for CO2 absorption. By constantly felling older trees and replacing them with younger trees, the forests are operating at peak CO2 absorption efficiency.
Furthermore, CO2 that has been absorbed by trees remains trapped in the wood over the service life of the floor, and is kept from being released into the atmosphere. Even when the floor has reached the end of its service life, it can be recycled into reclaimed wood flooring, further reducing its environmental impact.