Omnipresent God: Probably not on big, red buses

About 800 buses bearing the slogan "There's probably no God. Now stop worrying and enjoy your life" set off on Britain's roads on Tuesday in an atheist campaign responding to a set of Christian ads.

The campaign, which will also see slogans plastered across London's subway system, was paid for by more than 140,000 pounds ($200,000) in public donations, the British Humanist Association said.

It was the brainchild of 28-year-old comedy writer Ariane Sherine, who objected to the Christian adverts on some London buses that carried an Internet address warning that people who rejected God would spend eternity in "torment in hell".