home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
TIME: Almanac 1995
/
TIME Almanac 1995.iso
/
time
/
040494
/
0404331.000
< prev
next >
Wrap
Text File
|
1994-05-26
|
3KB
|
67 lines
<text id=94TT0347>
<title>
Apr. 04, 1994: Underwater Boom Boxes
</title>
<history>
TIME--The Weekly Newsmagazine--1994
Apr. 04, 1994 Deep Water
</history>
<article>
<source>Time Magazine</source>
<hdr>
ENVIRONMENT, Page 71
Underwater Boom Boxes
</hdr>
<body>
<p>By Philip Elmer-Dewit--Reported by Dan Cray/Los Angeles
</p>
<p> Think of them as a matched pair of undersea loudspeakers, one
sunk off the coast of California near Big Sur, the other near
the Hawaiian island of Kauai. A blast from one of these big
woofers would be loud enough to be heard in the water for thousands
of miles and loud enough to damage or destroy the hearing of
any animal that swam too close.
</p>
<p> That's a problem for some marine biologists and a lot of whale
lovers. Both groups came to Washington last week to speak out
against an experiment involving the boom boxes. The $35 million
project, set up by San Diego's Scripps Institution of Oceanography,
is designed to find out whether the much feared global warming
is actually occurring. At regular intervals over a period of
years, scientists will fire acoustic "shots" across the water
and measure the time it takes them to span great stretches of
the Pacific. Since sound moves faster in warm water than in
cold, researchers will get an indirect indication of ocean temperature.
The experiment will begin next month if the government grants
an exemption to a law protecting marine mammals from harassment.
</p>
<p> The dispute pits environmentalists against one another: those
who worry more about global warming vs. those who fret more
about animal welfare. Lindy Weilgart, a Cornell University expert
on whale acoustics, pointed out at hearings before the National
Marine Fisheries Service that whales and other marine mammals
rely on exquisitely sensitive hearing for hunting, navigating
and socializing. Noise pollution from the experiment, she fears,
could disrupt the mating and migration patterns of hundreds
of thousands of animals. As Weilgart put it, "A deaf whale is
a dead whale."
</p>
<p> Proponents argued that few creatures would swim close enough
to be deafened by the speakers, which will be anchored 3,000
ft. deep. Moreover, supporters said, the noise would be no louder
than other sounds filling the sea, from the thunder of cracking
polar ice to the roar of supertankers.
</p>
<p> By week's end many marine biologists had been persuaded that
the project was acceptable, and government approval seemed likely.
The Scripps Institution, for its part, has set aside $2.9 million
to study the experiment's effects on marine mammals and promises
to pull the plug on the loudspeakers the minute the neighbors
complain.
</p>
</body>
</article>
</text>