BREAKING NEWS: Denver among the 20 finalist cities for Amazon's second headquarters (Full Story)

WASHINGTON (AP) — The call of the wild is getting harder to hear.

A new study says peaceful, natural sounds are sometimes being drowned out by noise caused by people in many of America’s protected parks, forests and wilderness areas.

Researchers measured sounds at 500 spots — from city parks to federal wilderness. They calculated that in nearly two-thirds of the Lower 48’s parks, noise can at times be twice the natural background level because of airplanes, cars, logging, mining and oil and gas drilling.

hiking   thinkstock1 Shhh. Hear The Rustle Of Grass? Not So Much Now In US Parks

(credit: Thinkstock)

Colorado State University biologist George Wittemyer says people hear only half the sounds that they would in natural silence. He says noise pollution can hurt wildlife looking for mates and food even though it may still seem quiet as a library.

The study is in Thursday’s journal Science.

RELATED: National Park Visits Hits Record High For 3rd Straight Year

(© Copyright 2017 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)


Leave a Reply

Please log in using one of these methods to post your comment:

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

More From CBS Denver

Together 4 Colorado
Future Leaders

Watch & Listen LIVE