A
Right.
B
has been a real problem.
A
Yeah, that is, well that's destroying the ozone, isn't it?
B
Again I, that's what I hear and, and there's this big debate apparently about whether the ozone, there's a hole in the ozone or not but at last I heard it was, uh, discovered that the hole was bigger than they thought,
A
Yeah, that's wh-,
B
initially.