noise pollution

Boom Supersonic

It's been more than 15 years since a British Airways Concorde made its final landing in Seattle. The needle-nosed supersonic jet was added to the collection of the Museum of Flight at Boeing Field.

Now, new companies are poised to bring back supersonic commercial flying. A recently-formed industry group wants to designate airspace over the inland Northwest for the flight testing.

Tom Banse / Northwest News Network

In southwestern Idaho, biologists are purposefully making a racket this summer to study the value of natural quiet. A Boise State University research team is testing how wildlife and humans respond to noise pollution.

Tom Banse / Northwest News Network

The man who identified the quietest place in the Lower 48 - dubbed the "One Square Inch of Silence" - is going deaf. This Olympic Peninsula fellow campaigned against noise pollution, particularly at his symbolic spot in the Hoh Rain Forest in Olympic National Park. The self-described "Sound Tracker" is now in a race to edit his life's work before he loses more of his hearing.

For Gordon Hempton, it started with a common experience -- having to keep saying, "What, what?" Then the stakes got higher.