Yes, we're actually familiar with it. We did some very detailed studies on that when we were looking at twinning the bridge through an environmental impact statement that was jointly operated by Canada and the United States.
Again, the issue isn't the lanes over the water: it's whatever can be done to eliminate the delays at the border. That means things like the trusted trader program, the FAST program, the NEXUS program, proper regulations, proper staffing of the booths. As much as possible, we have to emulate free-flow traffic conditions. If you emulate those, you don't have the idling and you don't get the greenhouse gases.