Irena, I'm Glad to Be on the Podcast David

Michael Taylor from the International Renewable Energy Agency was certainly sort of talking there about just the sort of the scale of the problem which is what you were talking about at the start of the podcast. Michael I think we've come to the end of what we can do in one go I've really enjoyed this discussion and thanks very much again for joining us. It's always a delight to have a free-ragging conversation on a topic that is obviously close to my heart and my professional work.