Increasing incomes and urban growth is resulting in increased consumption of sugars, refined fats, oils, and meats. If this trend continues 80% of the increases in global agriculture greenhouse gas emissions will come from food production and land clearing. These diets also increase Type II diabetes and heart disease.
Alternative diets which reduce emissions and have health benefits can be determined by carrying out life cycle environmental impact assessments (LCAs) and projecting impacts, such as carbon emissions and land use. The full study can be accessed here.