My work is all about adventure and teamwork in some of the most inhospitable jungles, mountains and deserts on the planet. If you aren't able to look after yourself and each other, then people die.

I miss him still today: his long, whiskery eyebrows, his huge hands and hugs, his warmth, his prayers, his stories, but above all his shining example of how to live and how to die.

I've fallen down crevasses, been bitten by snakes, been knocked unconscious, had various limbs broken and once, a heavy camera came plunging down which very nearly decapitated me.

I do see a lot of the hard end of ecology, and my feeling is that we live on a super-exciting planet but a super-fragile one.

Christianity is not about religion. It's about faith, about being held, about being forgiven. It's about finding joy and finding home.

Always keep the big picture in mind- you are greatly loved by Jesus and your job is to love Him and others in return. The rest is detail.

To get ready to climb Everest, I did a lot of hill running with a daypack on and a lot of underwater swimming. I would swim a couple of lengths underwater and then a couple above. It gets your body going with limited oxygen.