Seismic survey at the Mariana trench will follow water dragged down into the Earth’s mantlle

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ScienceDaily: Oceanography News


Seismic survey at the Mariana trench will follow water dragged down into the Earth’s mantle

Posted: 22 Mar 2012 11:22 AM PDT

Seismologists have just returned from a cruise in the Western Pacific to lay the instruments for a seismic survey that will follow the water chemically bound to or trapped in the down-diving Pacific Plate at the Mariana trench, the deep trench to which Avatar director James Cameron is poised to plunge.

What is the monetary value of a healthy ocean?

Posted: 22 Mar 2012 07:04 AM PDT

Scientists have attempted to measure the ocean’s monetary value and to tally the costs and savings associated with human decisions affecting ocean health. The study estimates that if human impacts on the ocean continue unabated, declines in ocean health and services will cost the global economy $428 billion per year by 2050, and $1.979 trillion per year by 2100.
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