Various Web sites with links to resources aimed at teachers and students:
- NASA SeaWifs Ocean Color Page--Satellite-generated Maps of Ocean Productivity
- eWOCE Ocean Sections for various parameters (mostly chemical)
- Global Maps of Climatological Data (e.g. Sea-surface Temperature)
- Chemical Elements in Seawater--MBARI
A great (huge) book written about the importance of Salt in human history:
- Kurlansky, Mark (2003) Salt: A World History. New York: Penguin Books.
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