Browsing UNEP Publications by Author "Aletta, Francesco"
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Chapter 1. Listening to Cities: From Noisy Environments to Positive Soundscapes - Frontiers 2022 Report: Emerging Issues of Environmental Concern United Nations Environment Programme (2022-02)Sounds are complex physical phenomena originating in the vibration from a source that propagates energy into a medium as an acoustic wave. Sounds happen continuously and are everywhere: there is no such thing as 'silence' ...