Sure. The analysis we undertook on how we could reduce our emissions by 60% by 2050 essentially looked at the full array of technological options. It concluded that given the scale and nature of the problem, of the challenge, we would need to use every possible technology. Just as a caveat, our starting assumption was to do an analysis based on current technologies and what was known about the rates of development and uptake of those technologies. We weren't anticipating any kind of new breakthrough technology that might contribute to the solution here. So the message was that everything would need to be brought to bear, but some things were more equal than others.
We pointed to three strategic priorities that the country should move forward with. The first was energy efficiency, which was the single greatest of those wedges I was describing. It is an aggregation of a number of smaller wedges, and touches on some of the aspects Dr. Jaccard was talking about earlier. It certainly dealt with transportation efficiency and building efficiency, but that was the single biggest contributor to this overall reduction.
The second priority was in the form of carbon capture and sequestration. So we identified energy production from the oil and gas sector as the second key strategic priority in technology.
The third of those technology priorities was the electricity generation sector generally and the need to bring into that electricity system a much more decentralized and distributed approach based on cogeneration and renewables. Just about every electricity generation technology that exists today that we are aware of would have to make a contribution. Several of them would have to see their contributions ramped up substantially, primarily the renewables and the cogeneration.