Thank you. I'll go to the National Research Council now.
Ms. Littlejohns, we talk about the life-cycle analysis. I'm glad you're involved in that; that you have experience in it. Can we talk about the life-cycle analysis in the short term here? Let's go with the next 10 years—so I guess we'll call it the medium term—of the greenhouse gas emissions involved in producing biofuels, and then the greenhouse gas emissions in constructing the facilities that will be used in producing biofuels. Can you give us some enlightenment on that, please?