Yes, there are interactions amongst the many measures, whether you count them as 80-something or 120-something measures, depending on whether you group them under the emissions reduction plan.
We've heard previously from departmental officials at this committee, in fact, that they expect carbon pricing to account for around a third of the emissions reductions, and obviously regulations are the other big tool. There's a package of regulations, but if you put them all together, the regulations are the other big chunk of projected emissions reductions.
However, there are other tools, like subsidies that we're talking about in a couple of the reports today, and using the purchasing power, which we're talking about in the third one relating to climate. They're all supposed to fit together and result in the achievement of a target.
We've had several plans over the years that, on paper, appear to add up—although the current one doesn't quite add up to 40%; it adds up to 30-something per cent in terms of measures that are in place now. They're supposed to all add up in an economic model that Environment Canada uses to project emissions.
There are interactions, and sometimes it is difficult to parse out the effect of one program in isolation from others, and it's certainly true in the electric vehicle and infrastructure area, for example.
However, that shouldn't be an excuse to not do the calculations when you can, and to try to get the best numbers possible, and to be transparent with Canadians as to how much each of these measures is costing them or costing industry or costing government. We're looking for more transparency and more reliability of the models and the measures.
There may be the need for more measures. Other than just barely meeting 40% from past practice, maybe they need to go a little bit higher, recognizing that some of these measures don't pay off as much as they had hoped.