The world, including Canadians, are going to have to figure out how to limit increases in C02 emissions really fast, and how to reduce   C02 emissions. Had Canada done something way back when, when convincing evidence of the problem and its consequences was available, we would have an easier time of it. 
And yes, it will cost us. But if we do nothing, the costs of doing nothing are virtually astronomical. The Blue Ribbon panel calculated that to move past the tipping point towards uncontrolled global warming would be like the combination of world war one and world war two combined and multiplied  factors.

So we will pay, one way or another. Think about the costs we will have to bear to build sea dikes around most coastal cities, the loss of agricultural land, Antarctic ice shelves melting. 

Note. Carbon taxes can be revenue neutral, with proceeds going to create compensatory work in other sectors of the economy. 

Enjoy deluding yourself Your grandchildren will pay for your folly