Expert says drone deliveries will fill skies with 'incessant buzzing'

Daily Mail - Science & tech 

A sister company of Google, Alphabet's Wing Aviation, just got federal approval to start using drones for commercial delivery. Amazon's own drone-delivery program is ready to launch as well. As drones take flight, the world is about to get a lot louder – as if neighborhoods were filled with leaf blowers, lawn mowers and chainsaws. Small recreational drones are fairly loud. Serious commercial drones are much louder.