<P> A similar CSE report in August 2006 prompted many state governments to have issued a ban of the sale of soft drinks in schools . Kerala issued a complete ban on the sale or manufacture of soft drinks altogether . (These were later struck down in court .) In return, the soft drink companies like Coca - Cola and Pepsi have issued ads in the media regarding the safety of consumption of the drinks . </P> <P> The UK - based Central Science Laboratory, commissioned by Coke, found its products met EU standards in 2006 . Coke and the University of Michigan commissioned an independent study of its bottling plants by The Energy and Resources Institute (TERI), which reported in 2008 no unsafe chemicals in the water supply used . </P> <P> A study published in the Clinical Journal of the American Society of Nephrology in 2013 concluded that consumption of soft drinks was associated with a 23% higher risk of developing kidney stones . </P> <P> Since at least 2006, debate on whether high - calorie soft drink vending machines should be allowed in schools has been on the rise . Opponents of the (soft drink) vending machines believe that soft drinks are a significant contributor to childhood obesity and tooth decay, and that allowing soft drink sales in schools encourages children to believe they are safe to consume in moderate to large quantities . Opponents argue that schools have a responsibility to look after the health of the children in their care, and that allowing children easy access to soft drinks violates that responsibility . Vending machine proponents believe that obesity is a complex issue and soft drinks are not the only cause . A 2011 bill to tax soft drinks in California failed, with some opposing lawmakers arguing that parents--not the government--should be responsible for children's drink choices . </P>

Where does the term soda pop come from