I'll answer quickly as well. I think that technology is the answer. I think technology is the answer that has unlocked a lot of these resources, be it shale gas or tight oil or even the oil sands. Technology is also the answer to the environmental challenges that we face as well. We've seen that in particular on climate change issues. The industry has really worked hard to try to reduce its greenhouse gas footprint on that, as well as its water consumption. But it's technology that's the driver.
On that perspective, the latest technology out there is for Imperial's Kearl project that's coming on right now, for example. It's just starting this week. It actually has its greenhouse gas emissions on a life-cycle basis down to 2% within the U.S. average, and that's because of new technologies, the way they're developing it. That's only that one project. It's a big project. We still have a lot of historical work to work on, but it does give us the promise that we can continue to drive that down through technology.