Tree roots hold river banks together and stop the wind blowing soil away, there are many creatures that live in woods and they provide a sense of well-being and look nice.
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.
I don't think I'm really a rude person, but now I see myself on television, I think, 'Oh, God, that is a bit strong.' And I wonder if I've always been like that and I haven't been aware of it.
It's true, people don't imagine I'd be particularly woody.
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.
Gardening has just sort of grown on me. I find it therapeutic. And I like smelly things.
I like being forced to think about things in a different way.
Research gathered over recent years has highlighted the countless benefits to people, wildlife and the environment that come from planting trees and creating new woodland habitat. It's obvious trees are good things.
I am going to have to stick to the script. If I muck around with the words it will defeat the object.
I have done well out of TV, but not well enough to buy football clubs. I'm not sure it's ever a way to make money.
Well, I was very lucky. I was brought up west southwest coast of Scotland and my mother and father had a music shop, and so I was surrounded by pianos and drums and guitars, and music, of course.
The labour Party has lost the last four elections. If they lose another, they get to keep the liberal party.
You can be a famous poisoner or a successful poisoner, but not both, and the same seems to apply to Great Train Robbers.
I think political correctness is a moving line.
I do find myself surprised by the comedy shows that seem to have the same joke week in week out.
If I ever had any vanity, then I definitely lost it by being on television. It doesn't do you any favours in terms of showing you what you look like and what your emotions are.
I like to think of myself as a natural gardener.
My favourite plant is the foxglove. I think they are a perfect balance between being a garden plant and a wild plant, as at home in woodland as they are in a city.
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.
I remember being in China and realising how irrelevant not even Britain is, but also Europe. We're just another remote country that hardly impinges on some places at all.
