 Okay. Look, I am so educated on this. It's unbelievable that I know as much as I do. But when you have a fecal material decay in a low-oxygen environment, there are bacteria that produce methane, and then the cow bursts out methane. Now, it takes about an acre of ground to keep a cow alive. There's 1,500,000,000 cows on the planet. That means there's 1,500,000,000 acres of land