Ocean Dead Zones

Discussion in 'Environment' started by Orange_Juice, Aug 16, 2008.

  1. Orange_Juice
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    Orange_Juice Senior Member

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    Dead Zones Everywhere - Environment and Energy

    Since global warming hogs the environmental limelight, the fact that our oceans are also a mess often gets overlooked. But here's an eye-opener: According to a new study co-authored by the Virginia Institute of Marine Science's Robert Diaz, the number of "dead zones" in the ocean has roughly doubled every decade since the 1960s:

    Many coastal areas of the world’s oceans are being starved of oxygen at an alarming rate, with vast stretches along the seafloor depleted of it to the point that they can barely sustain marine life, researchers are reporting.

    The main culprit, scientists say, is nitrogen-rich nutrients from crop fertilizers that spill into coastal waters by way of rivers and streams.

    A study to be published Friday in the journal Science says the number of these marine “dead zones” around the world has doubled about every 10 years since the 1960s. About 400 coastal areas now have periodically or perpetually oxygen-starved bottom waters, many of them growing in size and intensity. Combined, the zones are larger than Oregon....

    The trend portends nothing good for many fisheries, said Dr. Diaz, a professor at the Virginia Institute of Marine Science at the College of William and Mary. “Dead zones,” he said, "tend to occur in areas that are historically prime fishing grounds."
     
  2. editec
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    editec Mr. Forgot-it-All

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    Great.

    We're killing the oceans, too.

    I resume that the areas killed are off shore of nations like ours which fertilize the crap out of the land so we can grow more corn to burn as ethanol, right?

    Why does this not surprise me?
     
  3. dilloduck
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    dilloduck Diamond Member

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    We fertilize the land to feed the world. Thos phenomenon has been known to us for some time and is being addressed as we speak. Hopefully we won't get distracted by some loon who thinks we all need to cool down the planet first.
     

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