clipped from dotearth.blogs.nytimes.com

Last August, the Natural Resources Defense Council persuaded a federal judge in Los Angeles to order a stop to Navy training exercises off Southern California using medium-range sonar. The judge said that the Navy’s own assessments predicted that dozens of marine mammals, particularly deep-diving whales, could be harmed by the intense sound waves. In January, a fresh injunction was issued by the court requiring the Navy to establish a 12-nautical-mile, no-sonar zone along the coast and to post lookouts for marine mammals.

While traveling in the Middle East on Tuesday, President Bush issued an exemption to the Navy from environmental laws that would otherwise limit its ability to use certain kinds of sonar used in anti-submarine warfare training, the Associated Press said.