Searing Australian heatwaves will feel cool by 2090 if greenhouse gas emissions aren't reduced, a leading climate scientist says.

A new report reveals Australia’s hottest year on record would not have happened without climate change. The country experienced its hottest day, month, season and calendar year in 2013, registering a mean temperature 1.2C above the 1961-90 average. The Climate Council says recent studies show those heat events would have…