Knowledge for better food systems

Showing results for: Journal article

Image: Max Pixel, Red Tomato Horizontal, CC0 Public Domain
25 June 2019

This paper sets out a new method to account for nutrition in the functional unit of life cycle assessments of single foods. The method accounts for the wider dietary context of each food type, which is found to affect the results relative to using either mass as a functional unit, or another nutrient-based functional unit that does not consider the dietary context.

Image: zuzyusa, Legumes nuts health, Pixabay, Pixabay License
25 June 2019

This perspective piece argues that the definition of protein quality should be updated to reflect both environmental and nutritional concerns. 

Image: Ron Knight, Corn Crake (Crex crex), Flickr, Creative Commons Attribution 2.0 Generic
17 June 2019

According to this study of farmland birds in Finland, bird abundance is positively correlated with the nearby presence of organic animal farms, as well as the percentage of nearby field cover and the presence of natural grasslands.

Image: Max Pixel, Pressure Industrial Pipe, Creative Commons CC0
17 June 2019

Methane emissions from ammonia fertiliser manufacturing plants (which use natural gas as a feedstock and energy source) in the United States are around one hundred times higher than currently reported levels, according to this study. Researchers used a Google Street View car equipped with methane analysers to take measurements downwind of six ammonia fertiliser plants (there are only 23 such plants in the US).

Image: Eva Decker, Moss bioreactor, Wikimedia Commons, Creative Commons Attribution-Share Alike 1.0 Generic
11 June 2019

This opinion article suggests that microbial biomass from bacteria, yeasts, or fungi could be used as human food and animal feed, with the advantage of using less land compared to conventional crop production, particularly if feedstocks were derived directly from atmospheric carbon dioxide.

Image: Ton Rulkens, Dried cassava roots, Flickr, Creative Commons Attribution-ShareAlike 2.0 Generic
11 June 2019

This paper finds that production of the top ten global crops has already been affected by climate change, with mixed impacts across both crop type and geographical area. Oil palm has seen a 13% decrease in yields relative to those that would have been seen under historical climate conditions, while soybean has seen a 4% increase.

Image: Robert Colletta, Photograph of a fully mature Perca flavescens (Mitchill, 1814) - yellow perch, Wikimedia Commons, Public Domain
11 June 2019

This paper by FCRN member Elinor Hallström assesses the nutritional content and climate impact of 37 seafood products. The paper finds high variability in nutritional and climate performance, with no consistent correlation between nutrition and climate impact across different seafood species. The paper calls for dietary advice to promote species with low climate impact and high nutritional value, including sprat, herring, mackerel and perch.

3 June 2019

FCRN member Charlotte Kildal has co-authored this paper documenting the Norwegian Armed Forces’ attempt to introduce the Meatless Monday campaign, where only vegetarian meals are served on one day each week. The paper found that the initiative had mixed results.

Image: Marco Verch, Glass bowls with buckwheat, rice, lentils, wheat, beans, seeds and nuts, Flickr, Creative Commons Attribution 2.0 Generic
3 June 2019

College students who take a course on food and the environment reduce their reported ruminant meat consumption by 28% relative to their consumption prior to the course, according to this paper by FCRN member Jennifer Jay of UCLA Civil and Environmental Engineering.

Image: Pxhere, Restaurant dish meal, CC0 Public Domain
3 June 2019

According to this randomised controlled trial, people eat an average of 500 kcal more per day when offered ultra-processed food compared to unprocessed food (as defined by the NOVA system). Furthermore, the trial subjects gained weight on the ultra-processed diet and lost weight on the unprocessed diet.

Image: Pxhere, USA America money, CC0 Public domain
29 May 2019

According to this paper, survey participants were less likely to support implementing carbon taxes if they were also given the option of implementing a “green nudge” policy (making renewable energy plans the default option for residential consumers, but not compulsory).

Image: DEZALB, India market fruit, Pixabay, Pixabay license
29 May 2019

This modelling paper finds that strategies to mitigate climate change could put an additional 160 million people at risk of hunger by 2050, if they are not designed carefully. However, these trade-offs could be avoided at a cost of around 0.2% of GDP in 2050.

Image: CSIRO, Microalgae – Nannochloropsis sp., WIkimedia Commons, Creative Commons Attribution 3.0 Unported
29 May 2019

This paper, produced by the Centre for the Study of Existential Risk at the University of Cambridge, outlines a system that could produce animal feed with lower environmental impacts than conventional soybean production. The system combines LED lighting, indoor photobioreactors, atmospheric carbon capture and geothermal energy to produce an algae-based feed product.

Image: elainemgs, Coca Cola Tin Soda, Pixabay, Pixabay Licence
13 May 2019

This paper explores industrial influence over industry-funded studies, using Coca-Cola as an example. It finds that, despite Coca-Cola developing a set of principles to guide transparency in the research it funds, the terms of funding it provides for some projects theoretically allow Coca-Cola to terminate studies early without reason and demand the recall of all documents from the study. However, no evidence was found of Coca-Cola having actually suppressed the publication of studies with unfavourable results.

Image: Atmospheric Research, CSIRO, Parched earth, typical of a drought., Wikimedia Commons, Creative Commons Attribution 3.0 Unported
13 May 2019

Extreme climate events such as droughts and heat waves are better predictors of yield anomalies than indicators of climate averages in maize, rice and soybeans, according to this paper. Irrigation can mitigate the negative yield impacts of frequent warm days.

Image: Andy Farrington, Rotary Parlour at Broadwigg Farm, Geograph, Creative Commons Attribution-ShareAlike 2.0 Generic
13 May 2019

This paper, written by researchers on the University of Oxford’s LEAP project and co-authored by the FCRN’s Tara Garnett, explores what drives the intensification of dairy farming, and the consequences for the environment, animal welfare, socio-economic wellbeing and human health. The paper also considers three potential approaches to addressing these consequences: sustainable intensification, multifunctionality, and agroecology.

Image: Louise.ward, Blue Apron meal kit, Wikimedia Commons, Creative Commons Attribution-Share Alike 4.0 International
8 May 2019

This paper calculates the environmental impacts (climate change, acidification, eutrophication, land use, and water use) caused by either making a meal by using a meal kit (which contains pre-portioned ingredients for cooking a meal) or by buying the ingredients from a grocery store.

Image: Max Pixel, Plate knife cover, CC0 Public Domain
8 May 2019

One in five adults in England, Wales, and Northern Ireland experienced some level of food insecurity in 2016, according to this paper, with people who are younger, non-white, less educated, disabled, unemployed or low-income being more likely to experience food insecurity. Low-income adults had a 28% probability of being food-insecure in 2004, which by 2016 had risen to 46%.

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