Bottled water is no safer than tap water, but it can cost as much as 1,000 times more, according to a study released today by the World Wildlife Fund in Geneva. The group said that bottled water sales are soaring because people are concerned that tap water may be polluted. However, the study found that the only significant difference between the two types of water is that bottled water is not distributed by pipes but instead sold in, yep, bottles. In fact, WWF said regulatory standards for tap water in the U.S. and Europe are tougher than those for bottled water, and that low-income families would be better off boiling or filtering any contaminated tap water rather than ponying up the bucks for bottled water. And the group had this fun fact to share: About 1.5 millions tons of plastic are used to bottle water each year.