How do you become a "world respected climate expert"? Well, you could study old bones, like paleontologist-turned-public spectacle Tim Flannery. Or you might win a Nobel for revealing the mysteries of T-cells, like medico Peter Doherty, who is now another go-to authority on climate change, punitive tariffs and Bjorn Lomborg's eco heresies. It's great work, if you can get it! Scare politicians into squandering billions of dollars on white elephant desalination plants and, as Zeg observes, you still get quoted by admiring reporters.