Yes, the greenhouse gas emissions from in situ are higher than the open pit mines because they require more energy to pump the steam underground and extract the oil. So over time, the greenhouse gas intensity per barrel is projected to go up.
We hear a lot about the reduction in intensity over the last 20 years—Mr. Coutu referred to 40%—well, the key is it is per barrel. The absolute emissions have continued to rise. A large part of the reduction in emission intensity over the last 20 years was when the industry switched from burning coke to natural gas. That was a one-time shift in reduction, and since then it's flatlined.