The problem carbon is that everyone thinks we have an energy problem, we don't. We have plenty of energy. We have a carbon problem. Carbon is a material, so we have a material problem, not an energy problem.

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.

I'd rather have that dialogue right now than only the other one, which is starting at such a basic level, that we start rearranging stuff on the Titanic, trying to be less bad with ordinary stuff.

We celebrate the cherry tree not for its efficiency but for its effectiveness - and for its beauty. Its materials are in constant flow, and all those thousands of useless cherry blossoms look gorgeous. Then they fall to the ground and become soil again, so there's no problem

Designing renders visible our hopes and dreams. It is the first signal of human intentions.

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

The problem I have with carbon as a bad thing issue, is that people go out and say they want to be zero carbon. You see it everywhere.