NASA | Earth Science Week: Salt Of The Earth

“Salt of the Earth” is Episode 4 in the six-part series “Tides of Change”, exploring amazing NASA ocean science to celebrate Earth Science Week 2009. To find out more visit climate.nasa.gov Want more? Subscribe to NASA on iTunes! phobos.apple.com Or get tweeted by NASA: twitter.com Salinity plays a major role in how ocean waters circulate around the globe. Salinity changes can create ocean circula…