 OXO-degradable plastics are designed so that they will not degrade deep in landfill and they will not therefore generate methane (a powerful greenhouse gas) in anaerobic conditions.OXO-degradable products do not degrade immediately in an open environment because they are stabilized to give the product a useful service-life, during which they do not break down.OXO-degradation of polymer material has been studied in depth at the Technical Research Institute of Sweden and the Swedish University of Agricultural Sciences.