I can't edit the materials I work with. My remit is to work with nature as a whole. I find nature as a whole disturbing. Nature can be harsh – difficult and brutal, as well as beautiful. You couldn't walk five minutes from here without coming across something that is dead or decaying.

Some of the snowballs have a kind of animal energy. Not just because of the materials inside them, but in the way that they appear caged, captured.

When it does get below freezing and there is - it's cold enough for ice to form, then that changes the whole landscape, and it makes the landscape a different landscape to the one that I worked with previously. And I want to understand that. But the big tension of the ice works is that they're often made when it's cold enough to freeze one piece of ice to another.

I think I have been fashioned by the fickle weather of Britain that it is - it's forever changing. There's no kind of constant sun or dry weather or freezing weather, and I'm always having to change and adapt to that.

I am not a performer but occasionally I deliberately work in a public context. Some sculptures need the movement of people around them to work.

I can't edit the materials I work with. My remit is to work with nature as a whole.

If you've ever come across a tree that you've lived with for many years and then one day it's blown over, there's incredible shock and violence about that.