Noise pollution – where did the tranquillity go and how can we regain it?

What is noise pollution?
Noise pollution, also commonly known as sound pollution and/or environmental noise is the spread of harmful levels of noise affecting both human and animal life. Noise pollution, according to National Geographic, affects millions of people globally. Noise pollution is typically generated from industrial activity, construction, freeways, and aeroplane traffic. There are, however, many other sources of noise that have dangerous decibels (dB: the measure of sound intensity) levels such as lawnmowers, jackhammers, train stations, bars/cafés and nightlife. All of which are mainstream noise pollutants to billions around the globe.