Energy-saving technologies keep improving faster than they're applied, so efficiency is an ever larger and cheaper resource.

Fire made us human, fossil fuels made us modern, but now we need a new fire that makes us safe, secure, healthy and durable.

I am a man without a furnace. My windows are insulated by 19 sheets of glass which cost less than installing a heating system.

I'm a practitioner of elegant frugality. I don't feel comfortable telling other people what to do, so I just try and lead by example.

I'm not an environmentalist. I'm a cultural repairman. It's all about efficient and restorative use of resources to make the world secure, prosperous and life-sustaining.

Public discourse about climate change has resulted in the erroneous idea that it's all about cost, burden and sacrifice. If the math was correct, everyone would see it's about profit, jobs and competitive advantage.