«Salt plays a far more important role that we
first thought,» says Rainer Zahn, a palaeoclimatologist at the Autonomous University of Barcelona
in Spain.Zahn and his colleagues found that a build up of
salty water off the coast of South Africa could jump start ocean circulation
in the North Atlantic (this despite the two regions being thousands of kilometers apart) while a reduction
in the South African
waters» saltiness could cause the opposite effect.