Once collected the garden waste is taken to a local farm site and subjected to a composting process. The waste is arranged into long piles, turned regularly and converted into compost. The compost is used as a soil conditioner for land reclamation and landfill restoration. Using the material on the site where it is processed reduces the need to import topsoil, thereby reducing cost, vehicle movements and emissions. Diverting the garden cuttings from landfill avoids generating methane, a powerful greenhouse gas.