As we race towards a global population of nine then ten billion, how can we produce enough food to feed us all, given that climate change now directly threatens the very crops which we rely on? In Follow the Food, James Wong explores whether farmers, scientists, tech innovators and consumers can build a new food system which can meet the twin challenges of population growth and climate change. In this episode James looks at the environmental costs of producing protein and how these can be avoided in the future. Show less