Many carpet manufactures are making huge efforts to use renewable and/or recycled materials in their products. The carpet and rug industry uses a labeling system to identify materials with fewer volatile organic compounds (VOCs) in the carpet fiber or in the adhesives used in installation. Such carpeting improves indoor air quality, a major consideration of green building. Shaw's Anso Nylon contains 25% post consumer content and is cradle to cradle certified. Mohawks Smart Strand is renewable-sourced polymer made partially from corn sugar and requires less energy to make. PET polyester fibers are made from recycled plastic bottles, containing 100% post consumer content.
Companies are practicing sustainable harvesting methods that don't permanently damage the eco system. Some companies are also using reclaimed lumber form demolitions and wood salvaged from forest fires and land clearing.