Testing the Waters

The Navy is about to release an Environmental Impact Report on its new high-tech sonar system. Activists say the technology can injure and even kill marine mammals. The controversy is just heating up.


Strange noises have been costing Jay Murray sleep since August 25, 1994.

An experienced scuba diver, he was diving with some friends that day, not far from Carmel, Calif. The last man into the water, Murray was barely submerged when he sensed something wrong.

“I could hear and feel a deep, low hum,” he recalls. “It was an immediate assault on my senses.” His lungs vibrating from the force of the noise, Murray surfaced to look for an approaching ship, but saw none.

Thanks to the Natural Resources Defense Council (NRDC), we now know Murray had probably overheard the U.S. Navy secretly testing new technology called low frequency active sonar (LFAS).The system is designed to detect enemy submarines from great distances by filling the ocean with sonar signals, then listening for the distinctive echo created when the sound bounces off an enemy sub. This “active” sonar is designed to detect the new generation of super-quiet subs, which the Navy fears can slip by the current “passive” sonar detection systems. The British, the Dutch, and the North Atlantic Treaty Organization (NATO) are developing similar LFAS systems.

Some scientists, activists, and a large coalition of environmental groups lead by the NRDC are concerned that LFAS could injure or kill marine mammals, and even harm humans. Although the system only has been tested and not fully deployed, at least 12 whales have apparently died at the hands of LFAS; they beached themselves off the coast of Greece — presumably due to acute disorientation, panic, or both — after a secret NATO test of an LFAS system. Several people also claim they have been hurt and perhaps permanently disabled.

In 1997, the Marine Mammal Commission reported to Congress that exposure to LFAS may cause hearing loss in whales, dolphins, seals, sea lions and other marine mammals; may disrupt feeding, breeding, nursing, and communication (whales use a form of sonar to navigate); and even may cause death from lung hemorrhage. During Navy testing in Hawaii, independent observers from the Ocean Mammal Institute (OMI) came across three separate calves, two whales and one dolphin, near the test site which appeared to have been abandoned by their mothers. OMI researchers have never observed or heard of any incident comparable in nine years of research in the Hawaiian Islands. Although Navy researchers believe the OMI’s claims were not documented sufficiently enough to verify them, this incident adds to concern that LFAS may disorient whales and disrupt vocal communication between mothers and calves.

Humans are vulnerable as well. According to a Navy document, after being exposed to 160 decibels of LFAS for 15 minutes, a Navy diver suffered dizziness, confusion, and tingling in the arms. Months later, the diver complained of ongoing memory loss, depression, and seizures. In 1998, eco-tour guide Chris Reid experienced similar symptoms, both short and long term, after being exposed to 125 decibels during LFAS testing in Hawaii. And Jay Murray has suffered from sleep disturbances and depression, maladies he believes are connected to LFAS exposure.

next

OUR NEW CORRUPTION PROJECT

The more we thought about how MoJo's journalism can have the most impact heading into the 2020 election, the more we realized that so many of today's stories come down to corruption: democracy and the rule of law being undermined by the wealthy and powerful for their own gain.

So we're launching a new Mother Jones Corruption Project to do deep, time-intensive reporting on systemic corruption. We aim to hire, build a team, and give them the time and space needed to understand how we got here and how we might get out. We'll publish what we find as a major series in the summer of 2020, including a special issue of our magazine, a dedicated online portal, and video and podcast series so it doesn't get lost in the daily deluge of breaking news.

It's unlike anything we've done before and we've got seed funding to get started, but we're asking readers to help crowdfund this new beat with an additional $500,000 so we can go even bigger. You can read why we're taking this approach and what we want to accomplish in "Corruption Isn't Just Another Scandal. It's the Rot Beneath All of Them," and if you like how it sounds, please help fund it with a tax-deductible donation today.

We Recommend

Latest

Sign up for our newsletters

Subscribe and we'll send Mother Jones straight to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate