Protein efficiency per unit energy and per unit greenhouse gas emissions: Potential contribution of diet choices to climate change mitigation
The production, transport and processing of food products have significant environmental impacts, some of them related to climate change. This study examined the energy use and greenhouse gas emissions associated with the production and transport to a port in Sweden (wholesale point) of 84 common food items of animal and vegetable origin. Energy use and greenhouse gas (GHG) emissions for food items produced in different countries and using various means of production were compared. The results confirmed that animal-based foods are associated with higher energy use and GHG emissions than plant-based foods, with the exception of vegetables produced in heated greenhouses. Analyses of the nutritional value of the foods to assess the amount of protein delivered to the wholesale point per unit energy used or GHG emitted (protein delivery efficiency) showed that the efficiency was much higher for plant-based foods than for animal-based. Remarkably, the efficiency of delivering plant-based protein increased as the amount of protein in the food increased, while the efficiency of delivering animal-based protein decreased. These results have implications for policies encouraging diets with lower environmental impacts for a growing world population.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Veysset, P. & Lherm, M. & Bébin, D., 2010. "Energy consumption, greenhouse gas emissions and economic performance assessments in French Charolais suckler cattle farms: Model-based analysis and forecasts," Agricultural Systems, Elsevier, vol. 103(1), pages 41-50, January.
- Carlsson-Kanyama, Annika & Ekstrom, Marianne Pipping & Shanahan, Helena, 2003. "Food and life cycle energy inputs: consequences of diet and ways to increase efficiency," Ecological Economics, Elsevier, vol. 44(2-3), pages 293-307, March.
- Faye Duchin, 2004. "Sustainable Consumption of Food," Rensselaer Working Papers in Economics 0405, Rensselaer Polytechnic Institute, Department of Economics.
- Michaelowa, Axel & Dransfeld, Björn, 2008. "Greenhouse gas benefits of fighting obesity," Ecological Economics, Elsevier, vol. 66(2-3), pages 298-308, June.
- David Pimentel, 2009. "Energy Inputs in Food Crop Production in Developing and Developed Nations," Energies, MDPI, Open Access Journal, vol. 2(1), pages 1-24, January.
When requesting a correction, please mention this item's handle: RePEc:eee:jfpoli:v:36:y:2011:i:5:p:562-570. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Dana Niculescu)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.