ben van beurden has been speaking to our business editor, simonjack, at europe's largest oil refinery through pernis, the largest refinery in europe. globally, shell has a carbon footprint the size of russia's. what you see here is predominantly refinery... chief executive ben van beurden said shell's transition to net—zero is possible but it will need the money from its oil and gas business for many years to pay for it. this facility is going to be transformed. we will produce biofuels. we will produce hydrogen over the horizon. all these things can only be done if you actually have a facility to work with, but also if you have the cash to invest with it, and that cash at this point in time comes from our legacy business. but it's not all legacy. shell wants to develop a new oilfield at cambo in the north sea. how does he justify that? so, tojust say, let's not get our oil and gas demand from our own resources that are probably the most advantaged resources, but let's import it from somewhere else, probably with a larger carbon footprint, i don't think that is going to contribute, of