The National Park Service released a report on the ban on the sale of disposable water bottles at U.S. national parks. The report showed that the ban had positive environmental results.
In 2011, the parks initiated a water bottle sales elimination program to reduce pollution and the costs of recycling plastic. It resulted in yearly savings of up to 2 million water bottles, according to an estimate in the report.
According to the May report, eliminating sales of water bottles prevented up to 112,000 lb of plastic from being sold and discarded each year, as well as up to 140 metric tons of carbon dioxide emissions. In addition, between 276 cu yd and 419 cu yd of landfill space stood to be saved.