evidence: Factually inaccurate: Observations clearly show that Australia has warmed by around 1 °C. [...] - Donat et al (2016) Extraordinary heat during the 1930s US Dust Bowl and associated large-scale conditions, Climate Dynamics "temperatures in Australia have only increased by 0.3 degrees over the past century, not the 1 degree usually claimed." I don’t know what the source of these numbers is. The official data for Australia by the Bureau of Meteorology, based on high-quality observations, clearly shows that average temperatures have warmed by 0.9-1 degree since 1910.