Mr. Speaker, we see clearly when we read the economic research on carbon pricing that the initial introduction of a carbon price has little impact on emissions. It is not until the price reaches its final stages further down the line that it actually starts to significantly reduce emissions. In other words, the reduction in emissions is not linear; it is exponential and the significant decreases come at the tail end of the pricing scheme and not at the initial stages.
In the House of Commons on October 3rd, 2016. See this statement in context.