“Long-term exposure to traffic noise affects our blood biochemistry, over and above the effects of exhaust fumes. … It is thought that noise triggers the release of the stress hormone cortisol, which damages blood vessels over time. … A leading acoustics engineer, Trevor Cox, hypothesises that the noises we find most stressful are distress calls – screams with an unhinged roughness to them, caused by the vibrations of the vocal folds when someone is truly terrified.” https://www.theguardian.com/lifeandstyle/2018/jul/03/sonic-doom-noise-pollution-kills-heart-disease-diabetes
Tinnitus and my mother’s giddy excitement have been reclassified as fatal.
This intense noise pollution would be in order to extract oil, the likely spillage of which would destroy the fragile Arctic ecosystem, and the burning of which would set the planet on a path to climate change that would render the oceans uninhabitably acidic. So the marine mammals may as well surrender now.