As political events in the United States wobble towards an authoritarian takeover it’s easy to lose sight of the larger picture. The price of food is going nowhere but up as climate disruption, soil depletion and water scarcity take hold. Scientists warn that changes to the earth’s life support systems could trigger irreversible changes to the biosphere. In his book How to Fix a Broken Planet, Julian Cribb describes the interrelated problems and remedial actions that could lead to meaningful change.