Climate change poses clear, catastrophic threats. We may not agree on the extent, but we certainly can't afford the risk of inaction.

We need to push ourselves to make as many reductions as possible in our own energy use first - and that takes time. But we must do this quickly - the climate will not wait for us.

We've got to get rid of the fear of failure in this country. In America, people start things, fail and shake themselves down and start things again. The animal spirit of capitalism is stronger there.

I try to keep in touch with the details... I also look at the product daily. That doesn't mean you interfere, but it's important occasionally to show the ability to be involved. It shows you understand what's happening.

You can't build a strong corporation with a lot of committees and a board that has to be consulted every turn. You have to be able to make decisions on your own.

We're not a manufacturer, or an airline, but we do use energy. Printing and publishing newspapers, producing films and television programs, operating 24-hour newsrooms. It all adds carbon to the atmosphere.

[Falling pound] makes us more competitive.