The Science of Global Warming - Hurricanes in the South Atlantic

Science reported a study by Pezza and  Simmonds that indicates the South Atlantic experienced its first hurricane in March 2004.  The hurricane, which hit Brazil, was caused by unusual metereological conditions associated with large scale atmospheric circulation patterns.  These patterns are being influenced by climate change so perhaps this hurricane is the first of many.  Science review of study published in Geophys. Res. Lett.