On bio-refining, I'm not an expert in bio-refining, but it's an umbrella word that describes a very big vision. And as with many big things, some things will come very quickly.
I think there are two milestones, two big issues to look for. One is finding a use for lignin in wood, which is the brown part of wood, and another big milestone would be if someone figures out how to get ethanol very efficiently out of wood. I'm not saying this is a good idea, but if this happens, it will be a disruptive influence in the whole sector. These things could come very quickly.