Pollution and chanting the Hare Krishna mantra....

"Water, air and practically everything is polluted these days. As the oceans are polluted by poisons, thus poisoning both the fish and the fish eaters, material sound vibration also pollutes and poisons the atmosphere. People spray poisons to kill insects, thus poisoning the grains and those who eat them. Similarly, material sound vibration in the form of abuses, criticism of others, quarreling and so forth, and in fact any material vibration, pollutes the minds, senses and hearts of everyone throughout the world. We can counteract this pollution and pain by chanting the Hare Krsna mantra." Srila BV Narayana Gosvami Maharaja