SEISMOLOGY:
Suit Ties Whale Deaths to Research Cruise
David Malakoff
Last week an environmental group asked a federal judge to suspend a National Science Foundation (NSF)-funded sea-floor mapping expedition off Mexico that it claims led to the deaths of two whales. NSF rejects a link between the deaths and the air guns used by shipboard researchers to generate sound waves, but the incident has nonetheless reignited controversy over the impact of noise on marine mammals.