Mr. Gareth Llewellyn:

I could not put a timescale on it but, ultimately, we want to be net zero by 2050 so there is a timescale that is almost inherent in all of the work we do to make sure that TII's activities are as close to zero as possible by that time. It will require some interesting innovations. It will require us to look around the world for examples of where we can adopt new technology and new materials to construct and maintain roads. All I can say is that TII is up for that challenge, and that is the most important thing.