The phrase in American publications these days is 'bottled water drinkers are the new smokers'. There are articles on the subject in many publications but I'll only give you two. Julia Whitty in www/motherjones.com and Giles Coren in www.treehugger.com. What's the argument? Well it starts from the findings of researchers at the Pacific Institute in Oakland, California, that bottle production alone wastes 50 million barrels of oil a year. Add the energy needed to process the water, label the bottles, fill the bottles, seal the bottles, transport them, cool them prior to sale and so on and the picture builds up.
The solution seems to be to use tap water in a re-usable container! Check the sources if you're interested and they will even direct you to other articles.