the University of Oxford. Levels of Saharan dust coming off the east coast of Africa in June 2007 were five times those observed in June 2006, and were the highest observed since at least 1999, which may have cooled Atlantic waters enough to slightly reduce hurricane activity in late 2007.

Health impact

Dust storms are a major health hazard. Short-term effects of exposure to desert dust include immediate increased symptoms and worsening of the

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