Pesticide use
In 2003, the Centre for Science and Environment (CSE), a non-governmental organisation in New Delhi, said aerated waters produced by soft drinks manufacturers in India, including multinational giants Pepsico and Coca-Cola, contained toxins including lindane, DDT, malathion and chlorpyrifos — pesticides that can contribute to cancer and a breakdown of the immune system. Tested products included Coke, Pepsi, and several other soft drinks (Seven Up, Mirinda, Fanta, Thums Up, Limca, Sprite), many produced by The Coca-Cola Company.
CSE found that the Indian produced Pepsi's soft drink products had 36 times the level of pesticide residues permitted under European Union regulations; Coca Cola's 30 times. CSE said it had tested the same products in the US and found no such residues.
http://en.wikipedia.org/wiki/Criticism_of_Coca-Cola#Pesticide_use