Dead Zones Occurring at Rate Not Seen in 94 Million Years

[Sea Save Foundation]

Oxygen-depleted “dead zones” are increasingly being found in our oceans. When oxygen in the oceans fell at similar rates some 94 million years ago, it caused a mass marine organism extinction. Dead zones occur when excessive nutrients from fertilizers and sewage accumulate in the ocean and cause algae blooms. When the algae die, they suck up oxygen. Marine organisms in dead zones either move on or die from the lack of oxygen.

Read more here (story #3).