That is a million-dollar question with respect to the potential future role of forests. We've done quite a bit of work on this. It starts out from a very good footing in that, right now, a lot of slash is burnt and released into the atmosphere, and forest companies actually have to pay to do that. Not only are we not capturing the potential value there, but it's actually costing the forest industry money to do that.
The problem is that the technology to turn that into cellulosic ethanol is still very expensive. There are some tough decisions to be made about what types of incentives to put in place if you want to start an infant industry in that direction. There are some tough decisions about whether or not that's a good bet for the government—some people have been talking about winners and losers—but it is an area where there is a lot of forest biomass out there, which, right now, sits on the ground. It sometimes contributes to wildfire, and it sometimes contributes to, of course, woody debris and the ecosystem functions of the forest.
There are a lot of decisions there about carbon flows, what the best use of that is and what the technology might be to do that. Right now, I would say it's way too expensive, but figuring that out as technology improves will be important.