sorry, don't want to discuss it

Well, Andrew Marr gets it, even if Clive James doesn't. In an interview to publicise his new book and TV series, The Making of Modern Britain, Marr tells The Times that the greatest challenge facing politicians today is the impact of climate change.

On our security, on migration, on food, on the natural world, on how we are all going to live. And no politician will talk about it.

Marr goes on to compare it to another great looming disaster from which many people averted their eyes.

I think there is a parallel with appeasement. In the 1930s, if you wanted to know what was going on in Nazi Germany, the evidence was there. But most people didn’t want to listen, they didn’t discuss it, it was far too nasty a subject.