ScienceNoise pollution in citiesTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceAnna Sacco06/21/2019June 21, 2019Urban centers are usually loud. But when do the sounds of the city become noise? And why is that a problem? DW reporter Anna Sacco went in search of answers and a bit of peace and quiet in the urban jungle.https://p.dw.com/p/3CzodAdvertisement