Well, because at some point, albeit well off into the future, we will run out of these resources, or at least get to the point where the perception tha our resources are dwindling that prices will become too high for economies throughout the world to run efficiently. So it's important to invest in the research and development in these fields to where we don't e er have to reach that point. Again, I'm not advocating to invest in a business that is ready to deliver a green product, nor am I saying we shouldn't, that should be based on the economic feasibility of the business model, what I am saying is invest in advancing green technology R&D