very interesting
good:
Why Eating Some Meat May Be Better for the Environment than Going Vegetarian
In fact, eating vegetarian occasionally could be a smarter environmental choice than eating no meat at all. The diet of those who eschew only red meat could have a smaller carbon footprint than that of dairy-loving vegetarians: A serving of chicken has a lower carbon impact than a serving of hard cheese. The real advantage, though, is that eating less meat opens up conversations about food choices with meat-eaters, while vegetarianism often shuts them down