Vegetarian and “Healthy” Diets Could Be More Harmful to the Environment
“Eating lettuce is over three times worse in greenhouse gas emissions than eating bacon,” [per calorie]
"... eating the recommended 'healthier' foods — a mix of fruits, vegetables, dairy and seafood — increased the environmental impact in all three categories: Energy use went up by 38 percent, water use by 10 percent and GHG emissions by 6 percent."
https://www.cmu.edu/news/stories/archives/2015/december/diet-and-environment.html