This is my time, Mr. Gravelle. I didn't interrupt you.
Mr. Scott, I want to talk a little bit about this. I'm from Alberta. I’m fairly familiar—I've been to the oil sands many times. I've taken the aerial tours and talked to some folks on the ground. Your Kearl project sounds very interesting.
Can you enlighten the committee on the difference between some of the mining operations and the permits, the reclamation processes or the reclamation requirements as they were years ago when some of the older mines were first started, compared to what today's technology is enabling you to do?
The ongoing and not waiting until the end of mine life for reclamation is a significant advancement. How have the technology changes enabled you to do that? It used to be that the tailing ponds would sit there, settle out, and we'd have a massive reclamation at the end of the mining phase. How are you able to do this? As you're creeping forward, you're backfilling, it sounds like. What's enabling that to happen now?