hypoxias

The algae use up all the oxygen in the water, creating hypoxias, or huge dead zones in our oceans where no marine life can exist.

'Stirring It Up: How to Make Money and Save the World' 2008

All told, 146 major hypoxias dot the world's oceans, and all are growing.

'Stirring It Up: How to Make Money and Save the World' 2008

One of the world's largest hypoxias is in the Gulf of Mexico, near the mouth of the Mississippi River.

'Stirring It Up: How to Make Money and Save the World' 2008