In August 2017 Flannery hosted an episode of ABC Catalyst investigating how carefully managed seaweed growth could contribute to combating climate change via the sequestration of atmospheric carbon to the ocean floor. This explored the details of the book he published in July 2017, 'Sunlight and Seaweed: An Argument for How to Feed, Power and Clean Up the World'. In January 2018 Flannery appeared on the ABC's Science program exploring whether humans are becoming a new 'Mass Extinction Event', in addition to outlining the '5 Things You Need to Know About Climate Change'.