This study was undertaken in 2007/8 by Cranfield University, AEA and others for Defra, and looks at the supply chains of seven food commodity groups, comparing UK-based with imported production across a range of environmental impacts areas, including GHG emissions.

Published in May 2009 by the Rural Industries Research and Development Corporation (RIRDC) of Australia this report quantifies the economic impact of a proposed Australian emissions trading scheme (ETS) on average farm businesses.

Koerber G R, Edwards-Jones G, Hill P W, Milà i Canals L, Nyeko P, York E H, Jones D L. (2009). Geographical variation in carbon dioxide fluxes from soils in agro-ecosystems and its implications for life-cycle assessment, Journal of Applied Ecology, 46, 306–314.