It's clear that there would probably be some carbon border adjustment if Canada were to do nothing on climate change, but it's very difficult to determine exactly what these costs would be in the absence of more information as to the timelines for not doing anything.
It's also difficult to determine with a high level of certainty what the response would be from our trading partners if we were to do nothing when it comes to climate change. What would be their reaction? What would they deem to be sufficient or insufficient? What's the trigger for our trading partners?