As you probably know, Europe has put forth two targets. One is a 20% reduction and one is a 30% reduction that is contingent on what the actions of other countries are doing. I don't know the calculus they will use to determine whether they go to 20% or 30%, but I do know that they are looking at the U.S. and whether they are comfortable with the range of efforts that would be made, particularly from today. They are a little less concerned about the historical emissions, or what hasn't happened since 1990, but they would like to be sure that going forward, we're all marching forward together. I think they will also be looking at Japan and Korea and the actions put on the table by China.
It's a calculus that I can't really describe for you, but I do know that's the way they're approaching it.