In a world of climate change and declining oil supplies, what is the plan for the provisioning of resources? Green economists suggest a need to replace the globalised economy, and its extended supply chains, with a more ‘local’ economy. But what does this mean in more concrete terms? How large is a local economy, how self-reliant can it be, and what resources will still need to be imported? The concept of the ‘bioregion’ — developed and popularised within the disciplines of earth sciences, biosciences and planning — may facilitate the reconceptualisation of the global economy as a system of largely self-sufficient local economies.