I try to make myself walk around a bit, but I probably think about it more than I actually do it. Years ago, I did think about joining a gym.

If you look at it ecologically, deforestation is high on the list of things which bring devastation. You cut down trees to build homes, for fuel, and you end up with no trees left, and you have to move on. If you take the earth as a whole, eventually there's nowhere to move on to.

On the environmental front there's concern about global warming and high levels of carbon dioxide, and trees take in CO2 and store carbon.

I am attached to the west coast of Scotland - it's gorgeous to look at and challenging. You have to contend with the possibility of being blown away or rained on. And in the summer months you can be eaten alive by midges.

The labour Party has lost the last four elections. If they lose another, they get to keep the liberal party.

Schoolchildren and older people like the idea of planting trees. For children, it's interesting that an acorn will grow into an oak, and for older people it's a legacy. And the act of planting a tree is not that difficult.

I'm pale-skinned so I don't feel at my best on a beach.