—yes, the right solution.
Life-cycle analysis generally is an evolving science. I'll speak to steel specifically. Production in steel, the way we make steel, is constantly evolving. I would argue that no industry is more focused on reducing its GHG emissions than steel. A life-cycle analysis is not a static thing. These evolve, so I would argue that professionals should be allowed to make that choice on a go-forward basis. Your LEED certifications are going to change over time. What constitutes a green building is going to change over time. I don't think we should be locking in policies that grant preference to a particular material.