I think people think their incomes have been flat lining for a long period of time. They feel that the next generation's opportunities are not going to be improvement. So and I also think that social media then allows insurgent movements to gain scale at speed.

As the world transforms, moves closer together, jobs are displaced, and the world of work completely changes the way we live, the way we think. As that revolution goes on around us, it is going to pose political challenges of which immigration is one very obvious one, which are going to be extremely difficult to deal with. But it's like free trade. You know, in the end, if we go protectionist, we'll make a mistake.

Fanaticism is not a state of religion but a state of mind.

The Donald Trump phenomenon in the U.S. is mirrored completely by the Brexit phenomenon in the U.K. It's very similar forces. And what is interesting to me is there are two different groups that come together, who don't really agree with each other, but have come together in unity against, if you like, what is perceived as the status quo, or - and certainly what is a more center-right or center-left type of politics.

Before people crow about the absence of weapons of mass destruction, I suggest they wait a bit.

If we are going to carry on growing, and we will, because no country is going to forfeit its right to economic growth, we have to find a way of doing it sustainably.

There is good evidence that last year's European heat wave was influenced by global warming. It resulted in 26,000 premature deaths and cost $13.5bn.