Learn in Bubbly, Carbon Dioxide and Charles Fishman  Watch Your
Mouth: Tapping the Source of Carbonated Water Where Does
Carbonated Water Come From?   In the 1990s, marketers proved
that just about anything can be bottled and sold by convincing
us to buy water. Since then, we've bought more and more of it.
Bottled water consumption has quadrupled since 1990. The
marketing feat of the decade relied on positioning the product
as a kind of status hydration. Some people are content slurping
straight from the tap for less than a penny a glass. Set
yourself apart by paying up for natural artesian water bottled
from the islands of Fiji.  In recent years, bottled water's
sophisticated status has given way to less palatable
connotations—global warming, plastic pollution, disposable
consumer culture. We know now that bottled water has about 1,000
times the carbon footprint of plain old tap water. As choosy
drinkers begin to view environmental consciousness as a key
status indicator, clever marketers have found an alter