Wow, years and years to get a river ranking system. It's rather impossible for them, since you would have to use convection physics, and that's impossible. If they acknowledged convection, then the whole carbon thing would go down in flames.
Best to wait years, and then things will be different. As we get colder, soon we won't even have a BC to prop up the faithful. Perhaps a drought in California, they always have those.
ps. we have a continuous river over North America. It's a very unusual formation and it might drag down more cold air for Toronto.