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A new record of past temperature change in the tropical Atlantic Ocean's subsurface provides clues as to why the Earth's climate is so sensitive to ocean circulation patterns, according to climate scientists. The researchers used geochemical clues in fossils called foraminifera collected from a sediment core located off the northern coast of Venezuela, to generate a 22,000-year record of ocean temperature and salinity changes in the upper 1,500 feet of water in the western tropical Atlantic. [Source: Tamu Times (Texas A&M University)]
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