>> there are a number of features, such as using recycled products such as carpet, cabinetry, things like that. we are using what they call no added formaldehyde wood in the cabinets. the building is largely not air- conditioned, which in our climate, it is benign, so it allows that. that is a green point. >> what about water strategies? >> when you talk about lead certification, a lot of the factors taken into account are things we are able to achieve just by virtue of the outstanding location, walking distance to the best transit hub in the city. we have walking services for just about anything anybody could want. >> we have high efficiency boilers to heat the water. it is a water source domestic heating system. >> what is next to the tower crane? we have a big blue piece. what is that? >> that is a concrete placing boom. that is how i put the concrete up onto the deck. the concrete truck will back into here, go to the hopper. then i have a slight line that runs up the center of the boom. that completes all the dax, walls, and columns with that. >> it must take a lot of power to pu