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Spacecraft to map oceans using salt levels

June 6, 2011 12:00:00 AM PDT
California scientists are taking part in an international mission to predict future climate change.

A spacecraft is set to lift off this week from Vandenberg Air Force Base that will map changes in the amount of salt found on the surface of Earth's oceans.

Scientists believe that understanding the varying salt levels will help understand when climate change could occur.

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