Global Warming?……. It was warmer in Sydney in 1790

WUWT
"Australia has recently experienced a hot summer leading to calls of “global warming did”, but its actually been cooler than the time when the first convicts arrived in Australia back in 1790 .....For while the mercury peaked at 42.3 C last Tuesday at Observatory Hill in Sydney – more than 222 years ago at 1.00pm on the 27th Dec 1790 (measured at a location just stones-throw from Observatory Hill) the mercury hit 108.5 F (42.5 C) before peaking at 109 F (42.8 C) at 2.20pm. The extreme heat of Sydney’s summer of 1790/91 is detailed by Watkins Tench (1758 –1833) in his book ‘A Complete Account of the Settlement at Port Jackson’ published in 1793. (Available to download from the internet for free, here).
.....It also worth noting that in 1790, Sydney (population 1,715) was still surrounded by mostly natural bushland, where modern day Observatory Hill in Sydney (population 4,627,000) is now surrounded by the concrete, steel and glass of a modern city, not to mention the tens of thousands of air-conditioners pumping out hot air into the surrounding streets, nor the 160,000 cars & trucks that cross the Sydney Harbor Bridge daily and pass within 100 meters of Observatory Hill."