The research, performed by the Beverage Marketing Corporation (BMC) for the International Bottled Water Association (IBWA), found that the average PET bottled water container weighed 18.9 grams in 2000 and 12.7 grams in 1998.
The BMC estimated that this means that more than 1.3bn pounds of PET resin have been saved in this time period by the bottled water industry through container light-weighting.