The British Humanist Ass'n (http://www.humanism.org.uk/home) has plastered sign on buses in London which read:

"There's probably no God. Now stop worrying and enjoy your life."

Professor Dawkins of the BHA said: "Religion is accustomed to getting a free ride - automatic tax breaks, unearned respect and the right not to be offended, the right to brainwash children.

The group chose Calgary as its second Canadian target because it has received a lot of support from city residents. It hopes to launch the Calgary campaign in March.