Now in the 21st century, with an abundance of renewable technologies, why is the world still using 18th-century energy technology? How can each of us harness our unique skills to help solve the climate crisis? Lesley Hughes is a Distinguished Professor of Biology and Interim Executive Dean of the Faculty of Science & Engineering at Macquarie University. She is an ecologist whose main research interest has been the impacts of climate change on species and ecosystems, and the implications of climate change for conservation. She was a Lead Author of the IPCC’s 4th and 5th Assessment Report, Director for the WWF Australia and federal Climate Commissioner and is now a Councillor and Director with the Climate Council of Australia. She is also a member of the Wentworth Group of Concerned Scientists.