California Investment Network

Recent Blog

Pitching Help Desk


"I'm very impressed with the level of professionalism of this network. I registered my request over three months now, and the response has been overwhelming; beyond my expectations. Although I have not closed any deals as yet, I'm still very hopeful. Keep up the good work!"
Verona Mustagal

 BLOG >> Recent

Life Cycle Analysis of Food Miles [Agriculture
Posted on March 19, 2013 @ 06:31:00 AM by Paul Meagher

One of the arguments that Locavore's make for why you should buy locally is that by doing so you will reduce the amount of "food miles", and by implication, the amount of greenhouse gases created to feed yourself. This argument has been persuasive to many consumers as indicated by popularity of the "100-mile diet" concept which basically advocates sourcing your food from within a radius of 100 miles. Doing so will reduce your "food miles" and in this way you can help the environment. If everyone followed suit it would make a huge difference in terms of greenhouse gas emissions (and the vitality of your local economy but I will not address this aspect of locavorism in this blog).

The main problem with the "food miles" argument for locavorism is that it only looks at greenhouse gas consumption from the retailer (i.e., farmer) to the consumer (i.e., the "distribution" component in table below), and does not address greenhouse gas consumption from a life cyle perspective which would include the greenhouse gases consumed to plant, harvest, package, store, distribute, consume, and dispose of the food items. When this broader perspective is taken into account, the "food miles" argument for locavorism can be contradicted by the facts (i.e., buying local can produce more greenhouse gases than buying from the global supply chain).

Food Life Cycle Analysis

If a farmer is producing and selling food that is in season to local consumers, then this is the best case scenario for locavorism. If the food producer needs to consume energy to heat a greenhouse to get a jump start on the growing season or to extend the season, or needs to consume energy to maintain a cold storage to preserve their harvest, then this energy is being consumed where it would not have been had the food been imported from a different food producing region at a different latitude where the product is in season or not subject to heating or cold-storage requirements. Transporting food in bulk via a container ship from one region to another region where it is supplied to consumers via transport to a grocery outlet, has been calculated to consume less greenhouse gases than consumers driving en-masse to a local producer to pick up out-of-season food items (e.g., local apples from the UK versus apples imported from New Zealand). Consumers are likely to pick up more of the food items they need at the local grocery store than they will be able to at a local producer so less trips are required. In some respects, Locavore's have it right that the drive from your residence to the food retailer is a big culprit in green house gas emissions, however, the argument can be turned against a Locavore when it is pointed out that the cost of transporting food from one region at latitude A to another region at latitude B via a container ship is so efficient that it accounts for a very small fraction of the overall greenhouse gas emissions produced relative to the amount of emissions produced when consumers drive en-masse from their residence to a local food producer who may be supplying only a fraction of their food requirements and thus not negating a trip to your local grocery store.

The "food miles" argument is only one of the arguments for buying food locally. For a food producer to extoll the lack of green house gas emissions produced by consumers buying locally, they will need to find innovative ways to make that statement true relative to the efficiency of the global food supply chain coupled to a big box grocery outlet. One simple innovation is delivering the food to consumers individually or at centralized pickup points, rather than having consumers drive to the local food producer to pick up their goods. Other innovations would involve improving the efficiency of other parts of the food life cycle: production innovations, heating innovations, cold-storage innovations, packaging innovations, and disposal innovations. Doing so would give more force to the argument that buying local helps the environment by reducing green-house gas emissions. I don't think these arguments against buy-local are fatal, but they do require locavore's to step up their game if they want to use a reduced food miles argument in an honest manner to promote their food products. There is room for local innovation here, but it is an innovation that looks at greenhouse gas consumption from a life cycle perspective rather than just how much is consumed in the distribution component.




 January 2020 [1]
 December 2019 [1]
 November 2019 [2]
 October 2019 [2]
 September 2019 [1]
 July 2019 [1]
 June 2019 [2]
 May 2019 [2]
 April 2019 [5]
 March 2019 [4]
 February 2019 [3]
 January 2019 [3]
 December 2018 [4]
 November 2018 [2]
 September 2018 [2]
 August 2018 [1]
 July 2018 [1]
 June 2018 [1]
 May 2018 [5]
 April 2018 [4]
 March 2018 [2]
 February 2018 [4]
 January 2018 [4]
 December 2017 [2]
 November 2017 [6]
 October 2017 [6]
 September 2017 [6]
 August 2017 [2]
 July 2017 [2]
 June 2017 [5]
 May 2017 [7]
 April 2017 [6]
 March 2017 [8]
 February 2017 [7]
 January 2017 [9]
 December 2016 [7]
 November 2016 [7]
 October 2016 [5]
 September 2016 [5]
 August 2016 [4]
 July 2016 [6]
 June 2016 [5]
 May 2016 [10]
 April 2016 [12]
 March 2016 [10]
 February 2016 [11]
 January 2016 [12]
 December 2015 [6]
 November 2015 [8]
 October 2015 [12]
 September 2015 [10]
 August 2015 [14]
 July 2015 [9]
 June 2015 [9]
 May 2015 [10]
 April 2015 [10]
 March 2015 [9]
 February 2015 [8]
 January 2015 [5]
 December 2014 [11]
 November 2014 [10]
 October 2014 [10]
 September 2014 [8]
 August 2014 [7]
 July 2014 [6]
 June 2014 [7]
 May 2014 [6]
 April 2014 [3]
 March 2014 [8]
 February 2014 [6]
 January 2014 [5]
 December 2013 [5]
 November 2013 [3]
 October 2013 [4]
 September 2013 [11]
 August 2013 [4]
 July 2013 [8]
 June 2013 [10]
 May 2013 [14]
 April 2013 [12]
 March 2013 [11]
 February 2013 [19]
 January 2013 [20]
 December 2012 [5]
 November 2012 [1]
 October 2012 [3]
 September 2012 [1]
 August 2012 [1]
 July 2012 [1]
 June 2012 [2]


 Agriculture [71]
 Bayesian Inference [14]
 Books [15]
 Business Models [24]
 Causal Inference [2]
 Creativity [7]
 Decision Making [15]
 Decision Trees [8]
 Design [37]
 Eco-Green [4]
 Economics [12]
 Education [10]
 Energy [0]
 Entrepreneurship [61]
 Events [2]
 Farming [20]
 Finance [25]
 Future [15]
 Growth [18]
 Investing [24]
 Lean Startup [10]
 Leisure [5]
 Lens Model [9]
 Making [1]
 Management [9]
 Motivation [3]
 Nature [22]
 Patents & Trademarks [1]
 Permaculture [36]
 Psychology [1]
 Real Estate [2]
 Robots [1]
 Selling [11]
 Site News [15]
 Startups [12]
 Statistics [3]
 Systems Thinking [3]
 Trends [7]
 Useful Links [3]
 Valuation [1]
 Venture Capital [5]
 Video [2]
 Writing [2]