Source: Property and Environment Research Center
by M Scott Taylor
“Maritime shipping is key to global trade, and international trade is key to prosperity worldwide. Despite generating enormous benefits, maritime shipping has raised the underwater ambient noise levels in the world’s oceans by three to four decibels per decade. This noisy trade has, until recently, had unknown impacts on the health of the world’s marine mammals. Drawing on a unique natural experiment, I link changes in the health of a killer whale population to changes in commercial vessel traffic in their critical habitat.” (09/25/25)
https://www.perc.org/2025/09/25/saving-killer-whales-without-sinking-trade/