In recent decades agricultural commodity surpluses in the developed world have contributed to a mantra of 'land surplus' in which set-aside, extensification, alternative land uses and 'wilding' have been key terms in debates over land. Quite suddenly all this has changed as a consequence of rapidly shifting commodity markets. Prices for cereals, oil seeds and other globally traded commodities have risen sharply. A contributor to this has been the shift to bioenergy cropping, fuelled by concerns over post-peak oil and climate change. Agricultural supply chain interests have embraced the 'new...