Apart from protecting our grass roof with hawks, our new Central Library building is generally designed as an ecological/environmental showcase...
I believe it will be *BREEAM compliant (for more on this, see The Green Guide), and although I don't know the ins and outs of all that, I like the idea.
It was certainly designed to those standards, but presumably the completed building will have to be assessed once completed and / or in use.
The latest I heard (don't quote me on this) is that we will open in mid-March 09.
* Building Research Establishment Environmental Assessment Method