In 1953, Jacques Cousteau published a classic memoir on his early days of underwater exploration. He titled this book “The Silent World.” Today, human activities make a mockery of that title. Over the past several decades, marine noise pollution has grown at an exponential rate. Noise from vessel traffic is doubling every decade. Pile-driving, dredging, sonar, and seismic exploration for oil and gas add to the cacophony. For marine wildlife, and especially for acoustically-sensitive cetaceans, this anthropogenic racket poses a grave and growing threat. Ocean noise pollution causes severe stress, behavioral changes, masking (i.e., difficulty perceiving important natural sounds), strandings, and noise-induced loss of hearing sensitivity. Our Ocean Noise Pollution campaign stands as a comprehensive response to this onslaught.