Progressive Wednesday

Sounds great to us; sounds deadly to whales.

Here's one of those things that might slide underneath the radar sonar of even the most conservation-minded progressive.

According to a report by the scientific committee of the International Whaling Commission, one of the world’s leading bodies of whale biologists, the evidence linking sonar to a series of whale strandings in recent years is “very convincing and appears overwhelming.” Despite the broad scientific consensus that military active sonar kills whales, the use of this deadly sonar in the world’s oceans is spreading.

The first time this came up was in the Bahamas when the United States Navy conducted a training exercise during which they used Low Frequency Active (LFA) sonar. Shortly after, whales from four different species beached themselves on the nearby islands. These whales were there because of massive bleeding in their brains and ears. Beaked Whales, observed in the Bahamas for decades, have not been seen there since.

How load is that sonar to a whale?

Some mid-frequency sonar systems can put out over 235 decibels, as loud as a Saturn V rocket at launch. Even 100 miles from the LFA system, sound levels can approach 160 decibels, well beyond the Navy’s own safety limits for humans.

In other words, it's like standing under a twin-engine jet fighter during take-off, except that marine mammals don't have those noise-canceling headsets that air traffic controllers have.

It's easy to overlook this practice because we are, and rightfully so, sympathetic to our military. But I believe that there can exist a balance between safety and environmental stewardship, even for the brave men and women in our armed forces. And as more nations join in this practice, it becomes more important to stop it.

The Natural Resources Defense Council has put together a petition to send to the Secretary of the Navy, Donald Winter, asking him to take the following measures:

• Put rich marine mammal habitat off limits.
• Avoid migration routes and feeding or breeding areas when marine mammals are present.
• Listen with passive sonar to ensure marine mammals are not in the testing area before switching on active sonar.
• Establishing appropriate safety zones around ships transmitting sonar.
• Reduce the source level of sonar signals at nighttime and in other periods of low visibility.

These are very reasonable measures to keep our Navy safe from attack and prevent marine mammals from suffering a horrible death. So please find 30 seconds in your busy day to join me in signing the petition. Then if you want to learn more, and this is just the tip of the proverbial iceberg, check out this video, narrated by Pierce Brosnan. It’s heartbreakingly horrifying.