I do research on and teach about sustainable food production and sustainable land use from many different angles. These include to assess the environmental impact of different foods using life cycle assessment (LCA), to calculate the climate impact and land use associated with different types of diets and comparing environmental impacts of different farming and food systems. I also work in many interdisciplinary projects where we look at the economic and information policy instruments for more sustainable dietary patterns and how more sustainable and healthy food ingredients can be produced and processed.
I also work 20% at the Centre for Organic Food and Farming (EPOK) with the research synthesis and research communication.
I am responsible for two courses in Life Cycle Assessment (LCA) and one on sustainable energy systems:
- Energy and life cycle analysis, 5 credits at the Energy Systems Program
- Life cycle assessment for environmental and water technology, 5 credits, at the Environment and Water program
- Sustainable development in the energy sector, 5 credits, at the Energy Systems Program
I also give lectures on the topic of climate and environmental impact of agriculture and food production at SLU, Uppsala University and Karolinska Institutet.
Effects of a climate tax on food and ways to re-cycle incomes. With Sarah Säll and Ing-Marie Gren, Depart of Economics and Emma Moberg, ET
The reduction in greenhouse gas emissions and tax revenues from a climate tax on food is calculated based on how the tax affects consumer demand for different foods. The study will analyse 1) the distribution effects (how the tax affects high and low-income groups), 2) changes in nutrient intake, 3) the impact on the profitability of Swedish farms and 4) other environmental effects of the tax (acidification, eutrophication, biodiversity etc.). It is further investigated how the revenue from the tax can be used to counteract negative effects of the tax e.g. by supporting the preservation of pastures if the tax leads to a decrease in the domestic production of beef.
Innovative food from legumes for increased resource efficiency in the food system https://blogg.slu.se/new-legume-foods/ With Georg Carlsson, SLU Alnarp and Cornelia Witthöft and Andreas Stephan, Linnaeus University
The aim of this project is to develop climate-smart and protein-rich food products containing domestic legumes (e.g. beans, lentils, peas), to increase the food system sustainability and stimulate a growing bio-economy based on novel, attractive and health-promoting foods. The project objectives are to: 1) identify strategies for incorporating grain legumes suitable for cultivation in Nordic climate into the Nordic diet, 2) develop new legume-based cropping systems that rely more on ecosystem services and less on fossil resources, 3) investigate effects of processing techniques on the nutritional quality of novel legume-based foods, 4) assess the economic, environmental and social sustainability of the production of foods based on domestic grain legumes compared to imported raw materials or meat, and develop decision support for handling trade-offs in the development of more climate-smart food systems. The project applies trans-sectorial collaboration among scientists, food industry, regional councils, farmers and consumers.
Innovative approaches to enhance agroecological farming in the EU. https://uniseco-project.eu/
UNISECO is a European research project aiming to develop innovative approaches to enhance the understanding of socio-economic and policy drivers and barriers for further development and implementation of agro-ecological practices in EU farming systems.
Environmental impacts of vegetarian food. With Hanna Karlsson, SLU.
In this project, we develop the scientific basis for the Swedish World Nature Fund (WWF) new veggie-guide to be launched in 2019. The project involves compiling data on environmental impacts from the production and distribution of vegetarian protein sources in various forms, fruits and vegetables, cereals, root vegetables and more. The results will then be the basis for the recommendations in the veggieguide. This consumer guide is being developed within the project "Vego i världsklass" which is run by the Swedish World Nature Fund and the Swedish Olympic Committee. In addition to the design of a vegoduide, the project includes training of chiefs in vegetarian cooking and adapting vegetarian meals to elite athletes.
I hold a MSc in Engineering Physics from Uppsala University. After graduating in 1999, I worked for ten years in the IT and telecom industry with product and project management. I began my doctoral studies at SLU in 2008 and in 2013 I defended my thesis Analysing the carbon footprint of food - Insight for consumer communication.
I am the main supervisor of Karin von Greyerz (SLU) and co-supervisor of the PhD-students Emma Moberg (SLU), Johan Karlsson (SLU), Stanley Zira (SLU) and Kajsa Resare Sahlin (Stockholm Resilience Center). I also supervise several master students.
Tidåker P, Karlsson Potter H, Carlsson G, Röös E (2021) Towards sustainable consumption of legumes: How origin, processing and transport affect the environmental impact of pulses. Sustainable Production and Consumption. https://doi.org/10.1016/j.spc.2021.01.017
Karlsson JO, Parodi A, van Zanten H, Hansson PA, Röös E (2021) Halting European Union soybean feed imports favours ruminants over pigs and poultry. Nature Food 2, 38-46. https://doi.org/10.1038/s43016-020-00203-7
Röös E, Bajzelj B, Weil C, Andersson E, Bossio D, Gordon LJ (2021) Moving beyond organic – A food system approach to assessing sustainable and resilient farming. Global Food Security 28, 100487. https://doi.org/10.1016/j.gfs.2020.100487
von Brömssen C, Röös E (2020) Why statistical testing and confidence intervals should not be used in comparative life cycle assessments based on Monte Carlo simulations. International Journal of Life Cycle Assessment. https://doi.org/10.1007/s11367-020-01827-4
Resare Sahlin K, Röös E, Gordon L (2020) ‘Less but better’ meat is a sustainability message in need of clarity. Nature Food 1, 520–522. https://www.nature.com/articles/s43016-020-00140-5
Zira S, Röös E, Ivarsson E, Hoffman R, Rydhmer L (2020) Social life cycle assessment of Swedish organic and conventional pork production. International Journal of Life Cycle Assessment. https://doi.org/10.1007/s11367-020-01811-y
Bajželj B, Quested TE, Röös E, Swannell RPJ (2020) The role of reducing food waste for resilient food systems. Ecosystem Services 45,101140.
Milestad R, Röös E, Stenius T (2020) Tensions in future development of organic production—views of stakeholders on Organic 3.0. Organic Agriculture. https://doi.org/10.1007/s13165-020-00312-4
Moberg E, Karlsson Potter H, Wood A, Hansson PA, Röös E (2020) Benchmarking the Swedish Diet Relative to Global and National Environmental Targets—Identification of Indicator Limitations and Data Gaps. Sustainability 12, 1407. https://doi.org/10.3390/su12041407
Kummu M, Kinnunen P, Lehikoinen E, Porkka M, Queiroz C, Röös E, Troell M, Weil C (2020) Interplay of trade and food system resilience: Gains on supply diversity over time at the cost of trade independency. Global Food Security, 24, 100360.
Godde CM, de Boer IJM, Ermgassen E, Herrero M, van Middelaar C, Muller A, Röös E, Schader C, Smith P, van Zanten H, Garnett T (2020) Soil carbon sequestration in grazing systems: managing expectations. Climatic Change. https://doi.org/10.1007/s10584-020-02673-x
Karlsson JO, Garnett T, Rollins NC, Röös E (2019) The carbon footprint of breastmilk substitutes in comparison with breastfeeding. Journal of Cleaner Production 222, 436-445. https://doi.org/10.1016/j.jclepro.2019.03.043
Moberg E, Walker Andersson M, Säll S, Hansson P-A, Röös, E (2019) Determining the climate impact of food for use in a climate tax – design of a consistent and transparent model. The International Journal of Life Cycle Assessment. https://doi.org/10.1007/s11367-019-01597-8
Karlsson JO, Röös E (2019) Resource-efficient use of land and animals—Environmental impacts of food systems based on organic cropping and avoided food-feed competition. Land Use Policy 85, 63-72. https://doi.org/10.1016/j.landusepol.2019.03.035
Gren IM, Moberg E, Säll S, Röös E (2018) Design of a climate tax on food consumption: examples of tomatoes and beef in Sweden. Journal of Cleaner Production, 211: 1576-1585. https://doi.org/10.1016/j.jclepro.2018.11.238
Karlsson J, Carlsson G, Lindberg M, Sjunnestrand T, Röös E (2018) Designing a future food vision for the Nordics through a participatory modeling approach. Agronomy for Sustainable Development, 38:59. https://doi.org/10.1007/s13593-018-0528-0
Röös E, Carlsson G, Ferawati F, Hefni M, Stephan A, Tidåker P, Witthöft C (2018) Less meat, more legumes - prospects and challenges in the transition towards sustainable diets in Sweden. Renewable Agriculture and Food Systems. https://doi.org/10.1017/S1742170518000443
van Zanten H, Herrero M, Van Hal O, Röös E, Muller A, Garnett T, Gerber PJ, Schader C, De Boer IJM (2018) Defining a land boundary for livestock production. Global Change Biology, 24(9):4185-4194. https://doi.org/10.1111/gcb.14321
Fischer K, Röös E (2018) Controlling Sustainability in Swedish Beef Production: Outcomes for Farmers and the Environment. Food Ethics 1-17. https://doi.org/10.1007/s41055-018-0027-7
Röös E, Mie A, Wivstad M, Salomon E, Johansson B, Gunnarsson S, Wallenbeck A, Hoffmann R, Nilsson U, Sundberg C, Watson CA (2018) Risks and opportunities of increasing yields in organic farming. A review. Agronomy for Sustainable Development 38:14. https://doi.org/10.1007/s13593-018-0489-3
Röös E, Bajželj B, Smith P, Patel M, Little D, Garnett T (2017) Greedy or needy? Land use and climate impacts of food in 2050 under different livestock futures. Global Environmental Change 47:1-12. https://doi.org/10.1016/j.gloenvcha.2017.09.001
Slätmo E, Fischer K, Röös E (2017) The framing of sustainability in sustainability assessment frameworks for agriculture. Sociologia Ruralis 57(3):378-395. http://dx.doi.org/10.1111/soru.12156
Spendrup S, Röös E, Schütt E (2017) Evaluating Consumer Understanding of the Swedish Meat Guide—A Multi-layered Environmental Information Tool Communicating Trade-offs When Choosing Food. Environmental Communication. http://dx.doi.org/10.1080/17524032.2017.1308402
Röös E, Bajželj B, Smith P, Patel M, Little D, Garnett T (2017) Protein futures for Western Europe: potential land use and climate impacts in 2050. Regional Environmental Change 17: 367. http://dx.doi.org/10.1007/s10113-016-1013-4
Hunter E, Röös E (2016) Fear of climate change consequences and predictors of intentions to alter meat consumption. Food Policy 62:151-160. http://dx.doi.org/10.1016/j.foodpol.2016.06.004
Röös E, Patel M, Spångberg J (2015). Producing oat drink or cow's milk on a Swedish farm - environmental impacts considering the service of grazing, the opportunity cost of land and the demand for beef and protein. Agricultural Systems 142:23-32 http://dx.doi.org/10.1016/j.agsy.2015.11.002
Röös E, Patel M, Spångberg J, Carlsson G, Rydhmer L(2015). Limiting livestock production to pasture and by-products in a search for sustainable diets. Food Policy 58:1-13. http://dx.doi.org/10.1016/j.foodpol.2015.10.008
Röös E, Karlsson H, Witthöft C, Sundberg C. (2015) Evaluating the sustainability of diets – combining environmental and nutritional aspects. Environmental Science & Policy 47:157-166. http://dx.doi.org/10.1016/j.envsci.2014.12.001
Röös E, Ekelund L, Tjärnemo H (2014) Communicating the environmental impact of meat production: challenges in the development of a Swedish meat guide. Journal of Cleaner Production. 73(0) 154-164. http://dx.doi.org/10.1016/j.jclepro.2013.10.037
Hallström E, Röös E, Börjesson P (2014) Sustainable meat consumption: a quantitative analysis of nutritional intake, greenhouse gas emissions and land-use from a Swedish perspective. Food Policy 47:81-90. http://dx.doi.org/10.1016/j.foodpol.2014.04.002
Röös E, Karlsson H. (2013) Effect of eating seasonal on the carbon footprint of Swedish vegetable consumption. Journal of Cleaner Production. 59:63-72. http://dx.doi.org/10.1016/j.jclepro.2013.06.035
Röös E, Sundberg C, Tidåker P, Strid I, Hansson P-A (2013) Can carbon footprint serve as an indicator of the environmental impact of meat production? Ecological Indicators 24:573–581. http://dx.doi.org/10.1016/j.ecolind.2012.08.004