01:25
The Ocean as a Sound Channel
Renowned oceanographer and geophysicist Walter Munk talks about differences in the ways sound travels in the ocean as compared to through the air. He observes that the ocean is an ideal medium through which sound can travel.
04:28
Noise Pollution and Marine Life
Renowned oceanographer and geophysicist Walter Munk talks about the impact of sound on marine animals. He discusses the campaign of environmental groups to cut down on noise pollution in the ocean--a campaign which Professor Munk argues resulted in ...