You can't see , smell , taste or touch it....

NOISE, the bane of modern urban life, now pollutes the countryside..

One American naturalist who spent some 16 years recording sounds
of nature has found his task increasingly difficult.

In 1984 he studied 21 sites in the state of Washington, U.S.A.,
that were noise free for 15 minutes or more.
Five years later , only three remain.

For many of the world's inhabitants, finding three noise- free places is a challenge.
In Japan, a nationwide report for 1991 stated that noise provoked more complaints then any other form of pollution.

Indeed, The Times of London aptly describeds noise as " the greatest scourge of contemporary life. "

From the irritatingly persistent bark of a dog to the blasting of a neighbor's stereo or the insistent blare of a car burglar -alarm or radio,
noise has become the norm.

Yet noise pollution is not new. It has a long history.