First of all, thank you very much for the question.
With respect to the IEA, I believe the actual request went from the G8 to the Carbon Sequestration Leadership Forum to come up with some recommendations on CCS. That forum came back and said, “We believe the G8 countries should have 20 projects up and running by a point in the future, but defined and moving ahead by 2010.” So there is going to be a report back, I believe, this June on that, and there has been some calibration of which projects around the world qualify.
They are all considered to be relatively large-scale. They are not commercial. All projects around the world are being funded now by governments and industry together, because there is not a commercial profitability, but they're at so-called commercial scale. That's kind of the distinction from what may have been done previously, which is more laboratory-scale or pilot-scale.
In terms of the appraisal and assessment--and I'll defer to my panel colleagues--I think it's going to depend on individual companies right now looking at what they see from results and working through an assessment over the next five years perhaps to determine which of these technologies works best. So it's not as though there's a given international panel that's going to look at everything and decide which is the winning technology.
Brian, you may want to comment on that.