Sadly, from what I have read the winds, heat and fires is a constant part of summer in Australia as it is in California, and the SouthWest. As Will Rogers said, the heart of the West is Desert. Melbourne originally was a treeless plain prior to settlement and the climate has not chanaged there. Google Australia Heat Waves and they go back in recorded time which is only about 150 years. 87 degrees is a heat wave? Out here in Vegas we are at least 110 July and August. Reading Andre Aggassi book and he constantly comments on the heat in Australia in the summer and DC. Warm is good and cold is bad as all of England, much of Europe and the USA have found out in the last 2 months. A century takes us back to 1910 and in the Billions of years history of the Earth, that is not even a blink let alone a history maker.