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Abrupt Climate Change: Ocean Salinity Changes and Potential Impacts on Ocean Circulation

Global warming is increasing high latitude precipitation and river runoff while also melting Arctic ice-caps and glaciers, causing more freshwater to enter the oceans in northern high latitudes. The freshwater lowers ocean salinity - and since salinity is one of the key drivers of the long-distance ocean circulation that distributes the planet's heat, this could have serious consequences.

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