Kevin, as somebody who sat next to you for three years on Dragon's Den, I want to congratulate you for taking the plunge into public service and taking on the real dragons and sharks of the political world. But there are a few things I'm concerned about. I know that you used to be open to the idea of a carbon tax -- I've seen the video of you talking about it. Somebody must have told you that you couldn't become Conservative leader if you supported one. But here's the thing: You will never become Prime Minister if you don't have a plan to deal with climate change.