You don't filter smokestacks or water. Instead, you put the filter in your head and design the problem out of existence.

Here's where redesign begins in earnest, where we stop trying to be less bad and we start figuring out how to be good.

I'd so much rather have exciting architecture that causes one to stop, breathe, and reflect on the potential of the human mind, the craft, and exploring things.

Our goal is a delightfully diverse, safe, healthy, and just world, with clean air, water, soil and power – economically, equitably, ecologically and elegantly enjoyed.

We are proposing buildings that, like trees, are net energy exporters, produce more energy than they consume, accrue and store solar energy, and purify their own waste, water and release it slowly in a purer form.

In the end, the question is not, how do we use nature to serve our interests? It's how can we use humans to serve nature's interest?'

You need that same creative force that exists in a building like Disney [Walt Disney Concert Hall] to actually tackle that most prosaic of problems.