Salt of the Earth

This video from NASA features scientists who describe the role of salt in the oceans and global oceanic circulation, especially the effect of salinity on the density of water and its global circulation, with reference to global climate change.

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NASA

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Teaching Tips

Teaching Tips

Good introduction to oceanic 'conveyor belt.'

Note that this video pre-dates the launch of the Aquarius mission satellite (on 10 June 2010).

Note: this video takes a long time to load in browser, depending on speed of Internet connection. Plan an activity or explanation to share while it loads, or load in advance.

Data are available through the NASA Physical Oceanography website: http://podaac.jpl.nasa.gov/SeaSurfaceSalinity/Aquarius

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