I know the committee has heard from Professor Jaccard on this matter. Strictly speaking, from an economics perspective, these targets could be reached without a carbon tax. I think that from a practical perspective, when I look at where Canada is today, my answer is, no, we can't do it without a carbon price, but that doesn't obviate the need for complementary regulations in order to get to where we need to go.
On June 18th, 2021. See this statement in context.