I thought this was interesting, especially this quote:
"I very specifically avoided that whole area [climate change] for two reasons. The first is that I thought I could create a compelling enough sense of urgency without going into that topic, and the second reason is that I had worked with this enough in various life settings to discover that there are people on both sides of that story that hold very strong beliefs around that material..."
That is the same decision I made about my own book, although, since 'climategate', I am wondering whether to say something more. It's very difficult to have a conversation that doesn't generate more heat than light - on which subject, an interesting guest post at Byron's place today.