Pelletier N, Pirog R, Rasmussen R (2010). "Comparative life cycle environmental impacts of three beef production strategies in the Upper Midwestern United States", Agricultural Systems 103 (2010) 380–389  This paper compares three US beef rearing systems. Cattle are finished either in: feedlot systems (having received hormone implants); backgrounding systems (also with hormone implants); or on pasture (no implants).

The Terrestrial Carbon Group is an international group of specialists from science, economics, and public policy with expertise in land management, climate change and markets.

At the end of 2008, the East of England Development Agency (EEDA) commissioned the Low Carbon Innovation Centre to produce a report investigating the potential of biochar as a soil improver and aid to regional agriculture.

L. Reijnders (2009): Are forestation, bio-char and landfilled biomass adequate offsets for the climate effects of burning fossil fuels?, Energy Policy Volume 37, Issue 8, Pages 2839-2841. Forestation and landfilling purpose-grown biomass are not adequate offsets for the CO2 emission from burning fossil fuels. Their permanence is insufficiently guaranteed and landfilling purpose-grown biomass may even be counterproductive.