I'd say that school is still out.
As I said earlier, LEED has certainly established itself as a well-known brand in North America, but it is not without cost. It has a very intensive data requirement for what you have to document, what you have to provide for certification in the evaluation process. We have four buildings that are LEED gold right now, and we have another nine, as I said earlier, that are coming online.
I would like to look at that along with work that has been done by the National Research Council to evaluate whether we get or realize the benefits that LEED gold is designed to achieve. I would like to do that.
LEED platinum would certainly bring another level in terms of investment, but whether it would return a payback to the taxpayer, in my view, is still not yet known.
Again, to be fair to LEED, it is very holistic. It's about a whole environmental approach; it's not just about energy.