At first it's going to be more expensive; I don't think there's any question about that. But you have to think about the whole package: what you're doing to your air, what you're doing to your groundwater, what you're doing to future generations, and the liability question. I think when you put all that package together and you think of the cost of it, and the cost of the carbon, I think you have a reason to say, “Let's get a new technology that releases nothing”. Biogas is basically a lot cleaner than using gasoline, or diesel, or whatever. I think you'd solve your greenhouse gas problem by refining—and that's really what it's all about—refining that garbage into a usable material, a biogas or an energy producer, electricity producer.
On December 3rd, 2014. See this statement in context.