Global warming sceptics in the UK are marking Climate Fool's Day. On this date two years ago, snow fell in London as the British Parliament was debating a bill to tackle global warming. It was the first such early snowfall for over eighty years. Activists claimed the ironic coincidence was just more proof that the bill is a waste of billions of tax-payers' pounds. One of the organisers of the annual Climate Fools Day conference, Weather Action's Piers Corbyn says global warming has simply been made up.