Increasingly, we are being asked by clients how they we can help them to make their businesses greener. What this actually means is changing. A few years ago, material or aerodynamic performance were at the forefront of clients’ minds. Environmental friendliness could be achieved through improved engineering. Green products would stretch our resources further. These days though, the challenges our clients are facing require deeper, more profound changes to not only their products, but also their services and even business models.