There are definitely interactions amongst the many measures that Canada has employed to address climate change. However, that's not an excuse for a failure to monitor or at least estimate the effectiveness of the key policies, whether it's carbon pricing regulations, as is the subject of this report, subsidies or the other tools that are available. We recognize that there are interactions amongst the measures.
It wouldn't be so troubling if Canada's trajectory, as you noted, was going in the right direction from 1990 to now. Given that Canada's the only G7 country that's had an upward trajectory since 1990, we feel that more work needs to be done to isolate the problems, which measures are working and which ones aren't, recognizing, of course, that there are some challenges with respect to tie-ins or interactions between various measures.