They drank coke-a-cola

and other assorted soft drinks until someone came along and said how bad they are for you. You need at least a gallon of water a day for your health. Then a company hanging out by a river said, let's get on the bandwagon and bottle this stuff. Everyone wants it! Then the earth went into a huge global warming deal were these billion upon billions of empty plastic water bottles ruined the environment and started the global financial collapse that we are experiencing to day.
Stay thirsty my friend.