There is ongoing concern as to the use of plastics in consumer food packaging solutions, environmental impact of the disposal of these products, as well as concerns regarding consumer safety. Karin Michaels, Associate Professor at Harvard Medical School, suggests that toxins leaching from plastics might be related to disorders in humans such as infertility and cancer.[13] Recently, some water bottles made of polystyrene and polycarbonate have been examined for contamination by prof.