Pollution

Using joss sticks in prayers by followers of Buddhism and Chinese folk religions is often met with disdain. Especially in the latter case where joss papers are also burn; never mind that the burning may be done in a furnace-like enclosure, people almost always complain about pollution. That's not about it all. In modern times, when monks may chant through the microphones and broadcast their chanting loud and clear via the loudspeakers to fellow devotees especially during Vesak,  even Kathina; non-devotees would to their chagrin, find it impossible to nap and focus on their work. Nobody has yet to complain about the noise pollution it produces but in a totally different case in India, it has been cited by some that the use of loudspeakers could, and in fact, had been used to create communal tension, and incite a riot in Nandurbar, Maharashtra state in 1999. Whoever invented the loudspeaker, I wonder; and whatever is/are his or her motive/s...