A California-based startup called Savor has figured out a unique way to make a butter alternative that doesn’t involve livestock, plants, or even displacing land. Their butter is produced from synthetic fat made using carbon dioxide and hydrogen, and the best part is —- it tastes just like regular butter.
The article mentions that they added vit A so it gets the yellow color and I’m pretty sure they’re not going to add CLA or other vitamins to be competitive with butter.
Meanwhile there’s a cheap food supplement that you can give cows that reduces methane burping by 90%.