Alternative food systems also help the environment, as they do not use the same chemical-heavy processes that industrial and commercialized agricultural systems use. Organic (meaning pesticide, herbicide and genetically-modified free) is the norm in alternative agriculture systems, which ultimately means that there will be less damage to the environment through the use of harsh chemicals and fertilizers. Local food systems do not depend on as much transportation as conventional systems reducing the emission of greenhouse gasses due to product transportation.