Sentences with phrase «noise pollution doubled»

Noise pollution doubled sound levels in 12 % of all wilderness areas.

Not exact matches

Noise pollution from humans has doubled sound levels in more than half of all protected areas in the United States — from local nature reserves to national parks — and it has made some places 10 times louder, according to a new study.

Rachel Buxton, a post-doctoral researcher at Colorado State University's Warner College of Natural Resources and lead author of the study, led a team of researchers that recorded sounds at 492 sites across the country in order to quantify the extent of noise pollution in the U.S. Using baseline sound levels for each study area established by machine learning algorithms that took into account geospatial features of the area, the researchers determined that anthropogenic noise pollution exceeds three decibels (dB), essentially doubling background sound levels, in 63 percent of the nation's protected areas.