I have a question on the IPCC's fourth assessment report targets. We've heard a lot in discussion, both on Bill C-311 and Bill C-377, its prior incarnation in the debate. Particularly the New Democrats will call them scientific targets. Greenhouse gases know no political boundaries. Science has been able to quantify the aggregate problem. It's global in nature. But in proportioning the targets, a choice was made to divide target responsibilities between developed and developing countries using something called, I think, an equity interpretation.
First, to the panel, are you familiar with what an equity interpretation is? Secondly, is that a standard scientific judgment, or is that a values or policy judgment?
I'll start with Mr. Zwiers.