SAN FRANCISCO, CA - MARCH 15:  Recycled plastic water bottles are piled up inside the Recology recycling facility on March 15, 2011 in San Francisco, California. The multi-million dollar bottled water industry continues to prosper despite outrage from environmentalists who point out that at least half of the empty bottles end up in landfills instead of being recycled. Environmental groups are encouraging people to use reusable containers and get their water from the tap which is safe to drink in over 90 percent of the United States.  (Photo by Justin Sullivan/Getty Images)