The cost for Canada to convert to clean energy ( Paris Accord) is two trillion $ per recent government studies. Two trillion $ is the $ amount of the 2008 bank write-off in EU/USA caused by the sub prime mortgage failure. It is ten years later ...Feds/ECB did everything they could to recover from the $2 T hit ( zero interest/trillions of $ of bond buying/depressed commodity prices) to facilitate recovery. Point is, we now know that it takes up to 15 years for the world to recover from an $2T hit !!    Canada would take  thirty to forty times that time to deal with an $2T hit.  Global cost for the signatories of the Paris Accord will be in the $120 T plus range.  One would think that the politicians, environmentalists, media , pro clean energy would have done even the most basic of cost estimates before going down this road.