As world leaders meet in Copenhagen desperately trying to fudge a deal that will persuade us they are on top of climate change I sit in my freezing office wrapped in several layers of wool which stops at my wrists - so my hands and typing fingers are still cold. I look out of the window at snow covered fields and hear the crack of breaking ice as the postman delivers bills and cards. Seldom before in my long life have I known such severe wintry weather in December and before the Christmas holiday. There's salt on the step to limit the likelihood of slipping and in a moment I shall need to re-stock with buckets of coal and baskets of logs for the fires without which this old house would turn into a cold store. And I think to myself - this must be Global Warming.