I'm going to continue to point to what the industry itself is saying, and cite again the report by Petroleum Technology Alliance Canada: there are emission reduction possibilities within the oil and gas sector—not just in Alberta, but obviously in other provinces that have an oil and gas sector—that would cost them nothing.
In the end, we are moving toward a world where we're going to have to reduce our emissions at one point or another. The longer we wait, the more it costs.
I'll point to another study. Sir Nicholas Stern put out an economic report on climate change. He found that the cost of not acting is much higher, at least five times higher, than the cost of dealing with climate change.