Environmentalist Mark Lynas believes that nature no longer runs the Earth. We do. Managing an entire planet isn’t easy, but in his new book, Lynas aims to show how humans can tackle this monumental task. In doing so, he disposes with the environmentalist playbook, arguing that to save Earth from ourselves, humans can, should and indeed must play God at a planetary level. He’ll join Doug on Monday to make his case for “jettisoning sacred cows” to solve the world’s gravest ecological problems.