David Karoly is Professor of Climate Science in the School of Earth Sciences at the University of Melbourne. He is an internationally recognised expert in climate change and climate variability, including greenhouse climate change, stratospheric ozone depletion and interannual climate variations due to the El Nino-Southern Oscillation. He was heavily involved in preparation of the Fourth Assessment Report of the IPCC. He joined the University of Melbourne in 2007 as an ARC Federation Fellow funded by the Australian Government. He is a member of the new Climate Change Authority in Australia, th...