"The idea that either a tax or a trading system would hurt the economy is dead wrong. The evidence is all to the contrary. Just look at B.C. and Alberta, look at six European countries that have done this. In fact it's the absence of a carbon price that can hurt the economy."
So even though the Conservatives are not even close to finishing regulating emitters — they still have to do oil and gas, and several other major sectors — the costs are already well above the $20 billion Harper accuses Mulcair's plan of costing.
In the past I have suggested that a carbon tax could be added to goods produced and that money could be used to assist manufacturers in adding systems that would reduce their emissions in turn reducing the amount of carbon tax that they pay. At the present time the government is subsidizing the installation of carbon capture equipment using taxpayer dollars.