Ocean noise pollution from shipping, sonar, and industrial activity causes significant welfare harm to marine mammals that depend on acoustic communication and navigation. Understanding impacts drives mitigation advocacy.
Ocean noise pollution imposes chronic welfare costs on marine mammals across vast ocean areas. Animals that have evolved in relatively quiet ocean environments are now exposed to noise levels that impair their fundamental ability to communicate, navigate, and find food. The welfare impacts range from acute trauma in mass stranding events linked to military sonar to the chronic stress of impaired communication in shipping corridors. Unlike most pollution types, noise pollution is completely preventable through speed reductions, technology modifications, and operational changes. The welfare case for noise pollution mitigation aligns with both conservation and precautionary welfare principles.