"Since the tax will be imposed at the wholesale level, Dion said, the level of taxation will depend on consumption of energy, not on production. He noted that 46 per cent of industrial emissions in 2002, the last year calculated by Statistics Canada, were on goods and services exported from Canada. That means a lot of carbon tax would be passed onto foreigners, not Canadian consumers, he said." source alternate source
It is not as if our high tax rates, the high dollar, stiff foreign competition, protectionism and unfair subsidies were enough of a hurdle for Canadian exporters to deal with; Dion's plan would make all of those exports even more expensive.
This guy really has no clue.