That is one aspect of the greening of operations.
We have put together fairly recently a strategic framework to help us think about greening government operations. For that, we've identified four domains of activity: land, because we have a lot of land, as the federal government, and we need to be effective stewards of that land; buildings, as you mentioned; business, or what happens within the buildings, which might be green procurement or might be how we use our equipment, how much paper we consume--all those sorts of things are captured within our framework in that way--and then there is movement, which is travel, vehicles, ships, and so on.
So, it is much more than green buildings and green procurement.