Premise: well it's hard to say i mean while it's certainly the case that things like automobiles and factories uh pollute a lot um if you look at how much pollution is say kicked up by an active volcano uh it's certainly less than clear that anything man can do in this sort of scale of things has much effect at all what do you think

Hypothesis: There are still other man-made creations that are capable of more pollution.
Relation: neutral