I feel that people I trusted - I don't know who, on what level - have let me down, and I think they have behaved disgracefully, and it's for them to pay. And I think, frankly, that I'm the best person to see it through.

The reality is that we've seen the last of any serious price wars for a long time. I don't think any of the others could afford it, certainly not on a long-term basis.

I felt that it's best just to be as transparent as possible.

I have never asked a prime minister for anything.

Some of our businesses use more energy than others, but our strategy everywhere is the same... first, reduce our use of energy as much as possible. Then, switch to renewable sources of power where it makes economic sense... And, over time, as a last resort, offset the emissions we can't avoid.

Successful workers will be those who embrace a lifetime of learning. Those who don't will be left behind.

Becoming carbon neutral is only the beginning. The climate problem will not be solved by one company reducing its emissions to zero, and it won't be solved by one government acting alone. The climate problem will not be solved without mass participation by the general public in countries around the globe.