Tim Flannery is one of the world’s most prominent environmentalists. In 2007 he was named ‘Australian of the Year’, arguably Australia’s highest honour. He delivered the 2002 Australia Day Address to the nation. In 2013 he founded, and is now chief councillor, of the Australian Climate Council, Australia’s largest and most successful crowdfunded organisation. His latest book is Sunlight and Seaweed: An argument for how to feed, power, and clean up the world (Text Publishing, 2017).