In the autumn of 2004 I was sitting on a train with a friend of mine, Karen Jepp, and we were discussing climate change. We’d both been reading about it (Bill Bryson started the whole thing as I recall) and had both, unbeknownst to each other, been going through a whole range of emotions about the subject: interest, fascination, amazement, incredulity, anger, disgust and fear. We were both clear about one thing: it was not the latest fad, it was not hysteria. We (by which I mean ALL of us) were sleep walking into the biggest disaster the human race had ever faced – Climate Change.

You see even re-reading that sentence somewhere I cringe. Talk of disasters, sleep walking, even “the human race” somehow sounds over dramatic, an exaggeration. Yeah, yeah, another global threat, another disaster. It’ll be fine. It always has. Except this time it is highly likely that it just won’t be fine at all.