Two things first:
The first major emitters of methane are cattle and sheep
Second, the documentary uses Americans as an example
The diet structure of our country is not completely open to eating meat. Meat is only acceptable to a healthy level, and our main food is not cattle and sheep, but pigs and chickens. Have you ever seen a restaurant that eats beef every day, but there are eggs on the breakfast table every day. It's puzzling to take the animals that emit the most greenhouse gases, occupy the most land, and need to graze against all the livestock that provide meat. This is the vague first concept. Not all livestock require very large amounts of land and large amounts of water.
It is also the second vague concept to measure all human beings by American standards. As we all know, Americans are the most wasteful, throwing away every year, and the wasted food accounts for 30-40% of the food provided. For all human beings, instead of asking you and me in developing countries to eat less meat and not eat meat, which affects health, it is better for developed countries to start by reducing food waste and switch from beef consumption to chicken consumption. A full vegetarian diet cannot maintain a healthy life for anyone. Don't hurt your body by touching yourself.
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