We spend the hour with one of the world’s leading scientists studying climate change, Tim Flannery. An Australian mammologist, palaeontologist and field zoologist, he has discovered and named more than thirty new species of mammals. He has been described as being in the league of all-time great explorers such as David Livingstone. Flannery might be best known as the author of the bestselling book “The Weather Makers: The History and Future Impact of Climate Change.” Earlier this year he was named 2007 Australian of the Year. [includes rush transcript]