Click the title of this posting to view a video shot by a news crew traveling with the Canadian Coast Guard as they transit through the now open Northern Passage. For those of you that have read the book "Are We Worth Our Salt?", your first question maybe: Why is it melting? This can be answered by the fact that as the salt content of the seawater descreases, its ability to hold thermo energy (heat) also decreases. Therefore, the warm water traveling from the equatorial regions is unable to hold its heat and transfers it to the ice causing the melting. This compounds our natural desalination process that is taking place. While this is important, I wish to draw your attention to the appearance of the ocean floor. It is a flat, off-white surface that is probably a deposit of salt; that was predicted in the book.
http://www.sciencedoubt.com
Friday, March 27, 2009
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