Nature is quiet

Photo credit: Michelle Cipriano licensed under CC BY-NC-SA 2.0 by Daniel Fink, MD, Chair, The Quiet Coalition The National Park Service noise maps show that without anthropogenic sounds--that is, human influenced sounds--nature is quiet. The top map shows existing noise conditions in the U.S., with the brighter yellow colors in cities being 53 A-weighted decibels* (dBA)