The trouble is that the hockey stick graph become an icon and deniers reckoned if they could smash the icon, the whole concept of global warming would be destroyed with it.

Bring down Mike Mann and we can bring down the IPCC, they reckoned. It is a classic technique for the deniers' movement, I have discovered, and I don't mean only those who reject the idea of global warming but those who insist that smoking doesn't cause cancer or that industrial pollution isn't linked to acid rain.

We don't invent our natures. They're issued to us along with our lungs, our pancreas and everything else.

I was interested in variations in temperatures of the oceans over the past millennium. But there are no records of these changes so I had to find proxy measures: coral growth, ice cores and tree rings.

The quicker we humans learn that saving open space and wildlife is critical to our welfare and quality of life, maybe we'll start thinking of doing something about it.

Healthcare continues to move outside the hospital and into our homes and everyday lives. With leading doctors and psychologists, for example, we've developed personal health programs designed around patients to catalyze sustainable behavioural change.

I think looking after your mental and physical health is key to confidence, because they go hand in hand. Meditation, doing some yoga, working out always makes me feel more confident in my own skin.

I have talked to women who do yoga, who are vegan, who have never smoked and/or never drank a day in their life, but they have Stage IV breast cancer. So you do what you can to be as healthy as you can if you know you're high-risk because yes, all those things can factor into that. But sometimes it's just a fluke.