What’s marine snow?

Ocean snow is a shower of usually biological debris that falls from higher in the water – sometimes for weeks – before reaching the ocean’s bottom. For millions of years, the debris has delivered flecks from plant and animal remains mucus, dust, microbes, and the ocean’s carbon to the seafloor._x000D_

What’s wrong with marine snow?

_x000D_An April 4, 2022, report in the New York Times identifies marine snowfall as increasingly being contaminated by microplastics, eventually settling on the seafloor in a layer of plastic that might affect Earth’s cooling process.