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Oceans – Hypoxia – Dead Zones?

Oceans – Hypoxia – Dead Zones?

Something I’ve been hearing an alarming amount about lately are things called ‘Dead Zones’ … these are areas in the worlds oceans that are literally dead. Oxygen free areas in the sea that every living creature flee’s for fear of suffocation. In these areas the toxic biological bacterial organisms thrive and take over excreating more and more toxins into their environments. No animal life can survive in these dead zones … the fact is the more oxygen free the environment the better it is for the nasty polluting bacteria.

This is scary stuff, the seas are throught of as the source of all life … is this going to be cyclical and be the source of death for all life as well?

Basically these dead zones have always occured, there was a recorded figure of about 150 or them worldwide in 2004 but they are found all over the world. In the gulf of Mexico there is a dead zone that has been growing since 1993 … in 2005 the zone covered 4,564 square miles … however in some years it has covered upwards of 7,000 square miles.

Thats 7,000 square miles absent of *ANY* animal life … no crabs, no clams, no fish … absolutely nothing that requires oxygen to live can survive in these areas …

You can read more here on the NASA web site.

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