The choice of policy, as I've indicated in previous testimony before this committee, is for the government. It knows the possibilities. The choices are difficult. Each one has stakeholders or affected parties that might be negatively affected by that choice. Some of them also have stakeholders that will be positively affected by the choice, and so on.
Ultimately, it's up to the government to come up with its selection of measures and for them to add up to a minimum of 40%, based on proper assumptions, without double counting and some of the things we've talked about, but the actual choice amongst the various different tools is not for us to say.
I can say that regulation, pricing and subsidies are the three main ones. To a lesser extent, less tangible things like education and procurement are some of the other tools. Within those, you have experts—such as the gentleman who's on the line with us today—who are better positioned, and within their mandate, to recommend very specific measures.
I can tell you that what we've seen for the last 30 years is plans being created that have not met the targets. The lesson needs to be learned: Create more realistic plans, but more importantly, implement them effectively.