[Editor's note: If you think it's interesting that 650 gallons of water go into making a cotton shirt, that large reservoirs in warm climates can produce significant amounts of methane, that china is building a 62 billion dollar water project, or that Americans drink less beer than they do bottled water, you'll want to look into this series in Forbes Magazine. Be sure to note the insert to the left at the page that lists all of the articles in this series.] Virtual Water Fred Pearce 06.19.08, 6:00 PM ET
