On February 6, 1851 Melbourne was 117 F at 8 AM. CO2 was at a very safe 280 PPM, and government climate criminals say that heatwaves were basically impossible with CO2 that low.
Climate criminal James Hansen of NASA spread flagrant lies about this topic.
Heatwaves were far more extensive prior to 1960. Hansen is claiming the exact opposite of the actual data, as all government climate criminals do.