Oxygen Depleted Dead Zone??

Wow, this is a real eye opener....in a nutshell, pollutants from the Mississippi River (which is fed from sources throughout the U.S.) have been seeping into the Gulf of Mexico for so long that the area - estimated at over 8,500 square miles is completely oxygen deficient. Read the short article below:

http://www.cnn.com/2007/TECH/science/07/17/gulf.deadzone.ap/index.html