As designers, we have an enormous, shared responsibility given that our work draws on natural resources. I usually only work for exclusives, and design one-off or limited-edition pieces, which I think demonstrates an awareness in itself. I pay the greatest attention when it comes to large installations, such as Swivel for instance. I would never have used marble, granite or travertine if they hadn’t told me it would be permanent. In my studio, we teach our designers to think and plan in as responsible a way as possible, and all the energy in our building derives from solar panels. We work with resin, which isn’t the most ecological possible, and so we explore new materials every single day, trying to work out how to harness organic or new and innovative materials.