Parts of Sydney make record high temperatures as sweltering heat wave fuel massive bushfires Australia is in the grip of a sweltering heat wave that's fueling massive out of control bushfires. More than half of that country is on fire. On Saturday, the extreme heat made parts of Sydney the hottest place on earth with a record 120 degrees. At least 23 people have been killed. Ursula Heger from Network 10 News reports.