Why are bushfires raging in Australia?
The HinduThe story so far: Australia’s bushfires have razed more than 10.3 million hectares of land — roughly the size of South Korea — since September. Climate models had indicated that the positive IOD may persist longer than typical events do — active right from May 2019 before peaking in October-November and decaying only during the first week of January 2020. The persistent heat and drought buttressed by the positive IOD conditions may have acted as a perfect foil for the tinder-like conditions, with climate change scientists and naysayers pitched on either side of a towering inferno, arguing their respective cases of what might have triggered the devastation. South-east Australia has been abnormally dry since September under prevailing positive IOD conditions, which means that it would need bouts of significant rainfall to have an impact on the fire risk. The fire season in Australia is always dangerous, with the 2009 Black Saturday fires killing 173 people in Victoria, making it the deadliest bushfire disaster on record.