Do they know what the cause is? Does it have anything to know with the cesspool the Mississippi has become with it bringing into the Gulf everything but the kitchen sink in herbicides, pesticides, industrial chemicals, silt, and sewage?
And now along with that we have oil. What a shame.
That's what caused the dead zones in the Chesapeake Bay. The watershed was so vast that the nitrogen and phosphate buildup overwhelmed portions of the Northern and Central tributaries, which were already running a fine line with DO content.
I don't see why the same exact physical and biochemical process wouldn't occur with the Gulf and the Miss. Yes the volume of water is a million times larger than the Bay, but the Miss goes through every frigging agriculture state in the country. It's scary what we can do too the earth, but it's truly amazing how well it heals itself. Case in point Lake Erie now versus 30 years ago (Zebra mussels or no zebra mussels there's no comparison).
