In the IPBES Global Assessment report, we learnt that to safeguard all life on Earth, we need transformative change. So what does that mean? How can we make it happen? This week's guest is Kai Chan. He is a professor at the University of British Columbia and one of the Coordinating Lead Authors of the Global Assessment. To find out more about IPBES, head to www.ipbes.net or follow us on social media @IPBES.