Sydney Morning Herald: THE main cause of our droughts and flooding rains has been traced to the waters of the Indian Ocean, according to a new report from the University of NSW which could overturn decades of weather research. The study shows that the cycle of El Nino and La Nina events, which have long been thought to play a major role in south-east Australia’s weather patterns, are in fact less important than the Indian Ocean. It is likely to have major implications for predicting rainfall in the …