It would get consumed by all sorts of marine life and cause vast death and pollution.

NPR: Some Very Bad Global Warming Solutions

Air pollution causes heart attacks and death.

FORBES: Researchers Prove Air Pollution Causes Heart Attacks

Pollution from them causes chronic and acute respiratory ailments and premature death, and it contributes to global warming.

NPR: EPA Proposal Eases Rules on Pollution Controls

People often act as if noise pollution is an annoying fact of life, like taxes or death or PBS fundraisers involving James Taylor.

WSJ: Joe Queenan on the Sound of One Neighbor Misbehaving | Moving Targets