There are already people claiming that the Brisbane Floods are the result of Climate Change. Australian Climate change committee member Professor Will Steffen has stated that there was no direct link between climate change and the Queensland floods. However he says that “As the climate warms, there is more water vapour in the atmosphere,” and “This means that there is a probability that there will more intense rainfall events around the world.” As well Professor Neville Nicholls, an Australian Research Council Professorial Fellow at Monash University “You’d have to be a brave person to say it [climate change] is not having some sort of effect”.
So how do these scientist explain that the worst floods in Brisbane’s history occurred in 1893. Brisbane has the longest complete record for floods.Â The Brisbane Flood of 2011 is nowhere near as high as the the floods of the 1890s or the 1840’s. So how did we manage to have more rain in the 1840s and 1890s when there was no Global Warming, and no Climate Change? When CO2 levels were much lower than they are today?
Neal Ashkanasy, a water resources engineer, says that he believes that the Wivenhoe Dam “kept 1.5m off the top of the 2011 flood”. That would make the flood about 6 metres,Â still well below the 1893 flood event. He also saysÂ “When John Oxley discovered Brisbane 180 years ago, the local Aboriginal people were very agitated about flooding, and they showed him high-water marks that would have been 12m.”.
A 12 metre flood approximately 200 years ago. 200 years of CO2 and we can only make 6 metres now.Â Yet somehow the flood of January 2011 was caused by coal-mining and climate change, yet a floodÂ double the size 200 years ago was caused by…..?
Associate Professor of Environmental Engineering Stewart Franks talks on Radio National Counterpoint program on why it is impossible to link Climate Change with floods, and how poor climate models are – its here.