I think there are a couple of approaches to this one. I referenced the clean air and climate coalition, which Canada and other Arctic countries are already members of. This group is working together on a national basis and is cooperating to raise awareness and reduce black carbon. So there is a process under way. It would be possible in the Arctic Council to create an “instrument”, as it's called, because nobody likes the word “treaty” in the Arctic Council. It would be similar to the search and rescue instrument, similar to the oil spill instrument, only it would deal with black carbon. This would put the Arctic states front and centre. They would each be making a commitment to follow through by using this process to reduce black carbon. It's a local issue also in the Arctic, and there are places where you can reduce black carbon in the Arctic. That's one of the win-wins with this. It wouldn't necessarily be an international instrument, but it could be, I suppose.
On March 19th, 2013. See this statement in context.