I wouldn't disagree with that, but I still think that you have to take account of the fact that electric vehicles are not carbon neutral. They're part of the solution more than part of the problem.

But I really think that we absolutely have to keep on debating this issue in order to make it higher up on the agenda, because it simply isn't registering at the moment sufficiently in people's conscience that we absolutely have to change the way we are doing things. So, we certainly need to pay much greater attention to this matter, because if we had as many people dying on the roads as we do having their lives shortened by air pollution, we'd have a lot more people demanding change.