water polution

now a days we can see that poultion in the world increases very speedlly.yesterday i was seeing the report on water polution on the t.v.that time i see the viedio in which reporter show that how  indrustrial center passing his factory seaveg directely into the river.i m taking about the city kanpur in india and river ganga.give me sum advice to stooped this nonsence and tell me your openion on this topic.is it right or wrong?