Meat production requires too much arable land. No other consumer good in the world requires as much land as the production of meat and dairy products.Two-thirds of it is pasture, one-third is needed to grow feed for the animals, which could be better used to grow crops and grains for direct human consumption. Another big problem is that animals, especially cattle, produce a lot of methane, which has a much stronger greenhouse gas effect than CO2.
So what can we do?
Eat less meat and focus more on organic products. Sustainability is the key!

Meat industry