You are right, more meat consumption in rich countries is due to affordability, and availability. And I love red meat, pork and lamb. Sorry to my vegetarian colleagues . Meat has its place in the economy and as a food source. However, the GHG and environmental challenges associated with livestock is also a challenge. Industrial countries are getting better, but, there is still a long way to go. There is a green premium we must consider. Are we willing to pay a few bucks more for organic and natural livestock base food products? A simple area is eggs. Some grocery stores now sell free range eggs which is different from cage free eggs or mass produced eggs. These are the way eggs use to be decades ago, before mass production and livestock food enhancements and hormones. In many cases, the price is 20% higher. But, if you factor in healthcare costs, and quality of life costs for a human eating process meats and eggs or organic and natural. The organic and natural comes out cheaper. It is just a matter of prospective.