This is a really good question. Those are absolutely what we should be thinking about and where we should be going.
Addressing climate change and energy use at the urban scale is a really critical lever that we have. For example, having waste heat capture and usage on the neighbourhood scale would be a really great way to reduce waste heat, and also, then, to use waste heat and reduce fossil fuel emissions. Getting people out of cars and into public transit and walking, or on cycle lanes, those types of things will also dramatically reduce the energy used.
In terms of buildings, most of our buildings are already built, so what I have argued for in the past is to have innovative business models: to put the innovation into the business model around clusters of technology that can retrofit buildings, and to focus on convenience and also on cost, making sure that we reach the widest population possible. In terms of new buildings, I would say, again, that it's innovative business models in terms of the targets you wish to reach. All of those are really critical going forward, because this has to do with equity issues, with comfort and with climate change.