This study focuses on UK diets.  It finds that if in average diets conformed to WHO recommendations, associated GHG emissions would be reduced by 17%.  Further reductions of up to 40% can be achieve through dietary shifts that include a reduction in animal products and processed snacks, and more fruit and vegetables. Abstract and conclusions as follows:

The UK’s Department of Energy and Climate Change has published a report based on their newly developed Global Calculator tool.

Green Monday is a global sustainability initiative that was designed to promote green lifestyle choices.  In this video Phil Valko, assistant vice chancellor for sustainability at Washington University in St. Louis, talks about the global Green Monday initiative and how making a small change to one’s food choices can have a major impact.

This paper investigates the environmental impact of the diets of Australian households at different income quintiles. The paper looked at 2003 household consumption and argues that income affects the environmental impacts of household diet, with higher income corresponding to higher impacts. The higher the income bracket the more was spent on food and this translated through to a higher environmental impact (GHG CO2e, water, waste, energy) at higher incomes.

This major study compiles and analyses global-level data to assess relationships among diet, environmental sustainability and human health.  It evaluates the potential future environmental impacts of the global dietary transition before exploring some possible solutions to the diet–environment–health trilemma. 

In this blog-post for the The Institute of Food Safety, Integrity & Protection (TiFSiP) Tim Lang, Professor of Food Policy at the City University London and FCRN advisory board member, discusses sustainable diets.  He argues that the pursuit of food integrity and authenticity is also the pursuit of sustainability.

This paper presents two ways of including environmental and nutritional aspects in the sustainability assessment of diets. Three diets were assessed using these two methods: a diet issued from the National Food Agency as a recommended diet reflecting food preferences in Sweden (SNÖ), a diet corresponding to current average food consumption in Sweden according to the latest food intake survey (Riksmaten) and a Low Carbohydrate-High Fat (LCHF) diet, which is a popular life-style diet in Sweden currently.

In this study, 483 food items (developed by the Casino Group retailer company) were grouped into 34 categories and then 5 major food groups; meat and meat products, milk and dairy products, processed fruits and vegetables, grains and other foods and sweets. The aggregated average carbon footprints of the categories and major food groups were presented per 100 gram of product, per 100 kcal of product and per two different nutrient density scores including six and 15 nutrients respectively.

This report by the Environment, Food and Rural Affairs Committee focuses on food security. The report makes recommendations for managing consumer demand, such as by encouraging the purchase of sustainably sourced products or the most nutritious food in order to help deliver environmental and health goals. It does not argue that there should be any further degree of compulsion on individuals.