davidshenba writes: Sticking to a vegetarian diet may not the best for environment — in fact, it might be harmful to it. According to new research from Carnegie Mellon University, following the USDA recommendations to consume more fruits, vegetables, dairy and seafood is more harmful to the environment because those foods have relatively high resource uses and greenhouse gas emissions per calorie. "There's a complex relationship between diet and the environment," Ph.D. student Michelle Tom said. "What is good for us health-wise isn't always what's best for the environment. That's important for public officials to know and for them to be cognizant of these tradeoffs as they develop or continue to develop dietary guidelines in the future." As you might suspect some find the study dubious at best.