This reference lists 15 catastrophic Australian Bushfires dating back from Feb 7 09 to Jan 13 1939. Is it a complete list? Perhaps not but I expect it includes most of those catastrophic bushfires which resulted in human deaths in Australia over the past 70 years. I would be very interested in seeing a comprehensive, verified list
10 of the fires occurred within the past 15 years, a frequency of 1 catastrophic fire every 18months.
5 catastrophic fires occurred over the previous 55 years, a frequency of 1 every 11 years.
I submit that consequences of global warming are upon us now