This week Marie  chats with  Julian Cribb. He is a very experienced science communicator specializing in environmental issues, the problems and what we need to do to alleviate them.

He has written several books including "The Earth System Treaty" which presents a plan for humanity going ahead and outlines the issue we are facing which will be central to our discussion. You can find out more about his book, The Earth System Treaty here: humanfuture.org/earth-system-treaty