 775-5559. You're on with Mark Ewins. Go ahead. Mark, I think a better question is, what doesn't infect the environment? I mean, all the concrete, negative effect. All the black fields surrounding Grand Forks, negative effect. All the towers and buildings you put up, negative. Everything affects it. Yeah. Now, the big question is, because I think this is really what your question is getting to, is can we say how much?