Thank you for clarifying that.
I want to ask questions about the ozone itself and its monitoring, particularly tropospheric monitoring. The ozone is at ground level, and then there's the first 50 kilometres, and then stratospheric ozone is way up there in the upper levels of the atmosphere. I'm curious about some of the information that's provided for us by our excellent researchers here at the Library of Parliament, our analysts, about ozone production in the upper atmosphere. It's said that UV light interacts with oxygen molecules and breaks up some of the O2s, releases some oxygen atoms that react, forming the ozone in the upper layers.
I notice here that this production is higher in equatorial regions. It seems to me that's what the information indicates. It's like shooting at a dart board, in my thinking—and correct me if I'm wrong on this—and that when UV light is striking the centre of the earth, it's on target for a bull's eye and you're getting more heating of the atmosphere and greater production of ozone at these equatorial regions, but that at the polar regions, where you're hitting the periphery of the atmosphere, you're getting less ozone production. Is that correct?
Maybe that's for Dr. Lin.